{"product_id":"beyond-stgcr1212h09-external-turning-tool-holder","title":"BEYOND STGCR1212H09 Indexable Turning Tool Holder for TCMT 0902","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 10px; box-sizing: border-box; -webkit-user-select: text; user-select: text;\"\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; background-color: #f8f9fa; padding: 15px; margin-bottom: 30px; border-radius: 6px; text-align: center;\"\u003e\n\u003cp style=\"margin: 0; font-size: 15px; color: #333333; font-weight: bold;\"\u003e⚠️ \u003cspan style=\"color: #47479f;\"\u003eImportant Tooling Notice:\u003c\/span\u003e The carbide turning insert shown installed in our product photography is for demonstration purposes only. This holder is sold standalone; indexable cutting inserts are \u003cspan style=\"color: #d9534f;\"\u003eNOT included\u003c\/span\u003e and must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 25px; border-radius: 6px; margin-bottom: 30px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 24px; font-weight: bold; letter-spacing: 0.5px; line-height: 1.3;\"\u003eBEYOND STGCR1212H09 Indexable External Right-Hand Turning Tool Holder\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0 0; font-size: 15px; opacity: 0.9; font-weight: 300;\"\u003eIndustrial-Grade 12x12mm Shank Right-Hand 91-Degree CNC Lathe Toolholder for TCMT 0902 Triangle Inserts\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f4f4f9; border-left: 4px solid #47479F; padding: 20px; border-radius: 0 6px 6px 0; margin-bottom: 20px;\"\u003e\n\u003cp style=\"margin: 0 0 12px 0; font-style: italic; color: #444444; font-weight: 600; font-size: 15px;\"\u003e\"Which 12mm right-hand tool holder is best for high-precision 91-degree external longitudinal turning, shoulder squaring, and smooth chip clearance on a Swiss CNC lathe using TCMT 0902 inserts?\"\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 15px;\"\u003eThe \u003cstrong\u003eBEYOND STGCR1212H09\u003c\/strong\u003e is an industrial-grade right-hand indexable external turning tool holder specifically engineered for fine finishing, longitudinal facing, and 90-degree square shoulder applications on conventional CNC lathes and automated Swiss-type sliding-headstock machines. Featuring a 91-degree lead angle, this holder delivers exceptionally low radial cutting forces, effectively eliminating structural deflection on slender shafts. Optimized for \u003cstrong\u003eTCMT 0902 (TCMT 1.8-1.5)\u003c\/strong\u003e and \u003cstrong\u003eTCGT 0902\u003c\/strong\u003e 60-degree triangular inserts, it utilizes advanced carbide substrate parameters and positive chipbreaker geometry layouts. It forces excellent spiral chip breaking, enhances heat dissipation at the tool tip, and entirely avoids built-up edge (BUE) when machining demanding carbon steel, alloy steel, high-temp stainless steels, and non-ferrous workpieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e2. Product Key Features\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; margin: 0; font-size: 15px; line-height: 1.7;\"\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003ePremium Quenched Alloy Steel:\u003c\/strong\u003e Fabricated from ultra-tough structural alloy steel hardened to HRC 42-45, delivering absolute rigidity and maximum harmonic vibration dampening for mirror-like surface finishes.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eUltra-Precise Insert Seating Pocket:\u003c\/strong\u003e Advanced CNC-milled insert seat pocket ensures stable screw-clamping, eliminating micrometer-scale insert movement and ensuring excellent indexing repeatability.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003e91° Lead Angle for Perpendicular Facing:\u003c\/strong\u003e Allows for seamless 90° shoulder squaring while preventing face-rubbing hazards, making it ideal for step-shaft operations.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eCorrosion-Resistant Matte Black Surface:\u003c\/strong\u003e High-grade industrial black oxide processing provides superior wear resistance against hot flowing swarf, preventing long-term tool shank erosion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e3. Technical Specifications \u0026amp; Cutting Parameters\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; font-weight: bold; margin-bottom: 10px; color: #47479f;\"\u003eDimensional Comparison (Metric Specs vs. Imperial Equivalents)\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #dddddd;\"\u003eParameter Description\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #dddddd;\"\u003eMetric Standard Model (STGCR1212H09)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #dddddd;\"\u003eImperial Equivalent Designation (STGCR08-1.8)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold; background-color: #f9f9f9;\"\u003eShank Square Size (H × W)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e12 mm × 12 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e0.472\" × 0.472\" (Fits standard 1\/2\" mini lathe tool holders)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold;\"\u003eOverall Length (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e100 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e3.937 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold; background-color: #f9f9f9;\"\u003eCutting Direction Orientation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003eRight-Hand Cutting (R)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003eRight-Hand Cutting (R)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCompatible Indexable Insert\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eTCMT 090204 \/ TCGT 090202\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eTCMT 1.8-1.5-1 \/ TCGT 1.8-1.5-0.5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold; background-color: #f9f9f9;\"\u003eHardware Clamping Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003eM2.2 × 5 Screw \/ Torx T6 Wrench Key\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003eM2.2 × 5 Screw \/ Torx T6 Wrench Key\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 14px; font-weight: bold; margin-bottom: 10px; color: #47479f;\"\u003eRecommended Machining Parameters (Speed vs. Feed Rate)\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f4f4f9; border-bottom: 2px solid #47479F;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dddddd; text-align: left;\"\u003eWorkpiece Material Category (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dddddd; text-align: left;\"\u003eOptimal Cutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dddddd; text-align: left;\"\u003eTarget Feed Rate Range (fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCarbon \/ Alloy Structural Steels (P)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e140 - 240 m\/min \u003cbr\u003e\u003cspan style=\"color: #666666; font-size: 12px;\"\u003e(459 - 787 SFM)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e0.05 - 0.16 mm\/rev \u003cbr\u003e\u003cspan style=\"color: #666666; font-size: 12px;\"\u003e(0.002 - 0.0063 IPR)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold;\"\u003eStainless Steel Material Alloys (M)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e100 - 180 m\/min \u003cbr\u003e\u003cspan style=\"color: #666666; font-size: 12px;\"\u003e(328 - 590 SFM)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e0.04 - 0.12 mm\/rev \u003cbr\u003e\u003cspan style=\"color: #666666; font-size: 12px;\"\u003e(0.0015 - 0.0047 IPR)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd; font-weight: bold;\"\u003eAluminium \u0026amp; Non-Ferrous Alloys (N)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e200 - 600 m\/min \u003cbr\u003e\u003cspan style=\"color: #666666; font-size: 12px;\"\u003e(656 - 1968 SFM)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dddddd;\"\u003e0.02 - 0.20 mm\/rev \u003cbr\u003e\u003cspan style=\"color: #666666; font-size: 12px;\"\u003e(0.0008 - 0.0078 IPR)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 14px; font-weight: bold; margin-bottom: 10px; color: #47479f;\"\u003eISO Nomenclature Decoded: STGCR1212H09\u003c\/p\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 18px; background-color: #f8f9fa; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; font-family: monospace; font-size: 13px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003eS\u003c\/strong\u003eScrew Clamping System\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003eT\u003c\/strong\u003e60° Triangle Insert Shape\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003eG\u003c\/strong\u003e91° Offset Side Cutting Angle\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003eC\u003c\/strong\u003e7° Normal Clearance\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003eR\u003c\/strong\u003eRight-Hand Clamping Direction\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003e1212\u003c\/strong\u003e12x12mm Shank H \u0026amp; W\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003eH\u003c\/strong\u003e100mm Shank Length\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 100px; background: #ffffff; border: 1px solid #dddddd; padding: 10px; text-align: center; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"color: #47479f; font-size: 16px; display: block;\"\u003e09\u003c\/strong\u003e9mm Insert Cutting Edge\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 15px;\"\u003e\n\u003cdiv style=\"font-size: 14px; max-width: 750px;\"\u003e\n\u003cstrong\u003eNeed premium matching carbide inserts?\u003c\/strong\u003e Maximize your machine setup by pairing this 12x12mm right-hand holder with authentic BEYOND TCMT 0902 turning inserts, engineered with robust chipbreakers for ultra-smooth longitudinal finishes.\u003c\/div\u003e\n\u003cdiv style=\"flex-shrink: 0;\"\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=TCMT0902\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(71, 71, 159); padding: 10px 18px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 4px; transition: opacity 0.2s;\"\u003e\u003cb\u003eView TCMT 0902 Inserts →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e4. Targeted Machining Applications\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background-color: #f9f9f9; padding: 15px; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"font-size: 15px; color: #47479f; display: block; margin-bottom: 6px;\"\u003ePrecision Longitudinal Turning\u003c\/strong\u003e Slashes radial tool forces, making it perfect for straight processing paths on small-diameter pins, slender axles, and fragile components.\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background-color: #f9f9f9; padding: 15px; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"font-size: 15px; color: #47479f; display: block; margin-bottom: 6px;\"\u003ePerpendicular Shoulder Squaring\u003c\/strong\u003e The 91° positioning angle cuts perfect 90-degree internal corners, preventing tail clearance friction from chewing the metal face.\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; background-color: #f9f9f9; padding: 15px; border-radius: 4px; border-top: 3px solid #47479F;\"\u003e\n\u003cstrong style=\"font-size: 15px; color: #47479f; display: block; margin-bottom: 6px;\"\u003eSwiss Lathe Operations\u003c\/strong\u003e Compact 12mm square dimensions allow seamless multi-station grouping inside Swiss sliding-headstock machinery platens.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e5. Tooling \u0026amp; Equipment Compatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; margin: 0 0 12px 0;\"\u003eThe 12mm metric square right-hand shank profiles are fully compatible with:\u003c\/p\u003e\n\u003cul style=\"padding-left: 20px; font-size: 15px; line-height: 1.8; margin: 0;\"\u003e\n\u003cli\u003eStandard tool blocks on compact CNC lathes and slidable gang platen systems (e.g., Haas, Tormach, Sherline, Emco).\u003c\/li\u003e\n\u003cli\u003eSwiss-type CNC automatic sliding-headstock machines configured for 12mm tooling blocks (Citizen, Star, Tsugami).\u003c\/li\u003e\n\u003cli\u003eQuick-Change Tool Posts (AXA or 100-series Aloris blocks) commonly utilized in precision workshop prototype environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px; background-color: #1a1a24; color: #ffffff; padding: 25px; border-radius: 6px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #ffffff; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e6. BEYOND Carbide Grade Matrix \u0026amp; Technical Insights\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; opacity: 0.9; margin-bottom: 20px;\"\u003eSelect the matching BEYOND carbide insert grade engineered for your exact manufacturing material profile and chipbreaking criteria:\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px; color: #ffffff;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #444455; text-align: left;\"\u003eBEYOND Grade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #444455; text-align: left;\"\u003eISO Target\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #444455; text-align: left;\"\u003eCoating Tech\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #444455; text-align: left;\"\u003eOptimal Substrate Strategy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455; font-weight: bold; color: #9fa0ff;\"\u003eBYM11 (Gold Oxide)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eP10 - P25\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eCVD TiN \/ Al2O3\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eContinuous high-speed dry turning of carbon\/alloy steel. Ultimate crater wear defense.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #252535;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455; font-weight: bold; color: #9fa0ff;\"\u003eBYS25 (Bronze Finish)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eM20 - M35\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003ePVD Nano-AlTiN\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eFine-to-medium tuning of austenitic stainless steels. Maximizes protection against notch wear.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455; font-weight: bold; color: #9fa0ff;\"\u003eBYA10 (Uncoated Polished)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eN05 - N20\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eNone (Mirror Polished)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #444455;\"\u003eAluminum alloys, bronze, and engineering plastics. High rake edge prevents chip welding.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 1px solid #444455; padding-top: 20px; font-size: 13px; opacity: 0.9; line-height: 1.7;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cspan style=\"color: #9fa0ff; font-weight: bold;\"\u003e💡 Grade Comparison Tip:\u003c\/span\u003e The BEYOND BYS25 grade delivers benchmark industrial equivalent performance to Sandvik GC2025, Kennametal KC5010, and Sumitomo AC630M.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cspan style=\"color: #9fa0ff; font-weight: bold;\"\u003e🔧 Troubleshooting (Harmonic Surface Chatter):\u003c\/span\u003e Standard 60° triangular TCMT inserts have a larger wedge volume which can induce harmonic vibration on slender setups. Since the STGCR 91-degree lead angle inherently mitigates radial forces, if chatter occurs, immediately change from a 0.4mm nose radius (TCMT 090204) to a 0.2mm or 0.1mm radius (TCGT 090202) to direct forces entirely into the axial spindle direction.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cspan style=\"color: #9fa0ff; font-weight: bold;\"\u003e⚙️ Workpiece Material Matrix Advice:\u003c\/span\u003e When processing tough nickel-based alloys or gummy low-carbon steel parts, implement a highly ground, sharp polished TCGT configuration rather than molded TCMT alternatives to cleanly slice metal grains and avoid work hardening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e7. Why Precision Toolrooms Trust BEYOND Tools\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; margin-bottom: 25px;\"\u003eBEYOND cuts out middleman distributor markups by supplying factory-direct, industrial CNC tooling solutions. Every indexable tool body undergoes strict quality checks to guarantee true centerline alignment and minimal runout on your lathe.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; font-weight: bold; margin-bottom: 15px; color: #333333;\"\u003eVerified Global Machinist Feedback\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 15px;\"\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; background-color: #fdfdfd; padding: 15px; border-radius: 6px; border-left: 4px solid #47479F;\"\u003e\n\u003cdiv style=\"display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px;\"\u003e\n\u003cstrong\u003eRobert H. — United States\u003c\/strong\u003e \u003cspan style=\"color: #ffb400; font-size: 14px;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #4a5568;\"\u003e\"This 12mm STGCR holder works flawlessly on our small Haas lathe. It turns exact 90-degree steps on aerospace pins with zero tapered deflection. Exceptional insert pocket tolerance.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; background-color: #fdfdfd; padding: 15px; border-radius: 6px; border-left: 4px solid #47479F;\"\u003e\n\u003cdiv style=\"display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px;\"\u003e\n\u003cstrong\u003eMarkus L. — Germany\u003c\/strong\u003e \u003cspan style=\"color: #ffb400; font-size: 14px;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #4a5568;\"\u003e\"Perfekter 12mm Drehmeißel für Schweizer Langdrehautomaten. Der 91-Grad-Einstellwinkel minimiert den Schnittdruck spürbar. Sehr saubere Planflächen.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; background-color: #fdfdfd; padding: 15px; border-radius: 6px; border-left: 4px solid #47479F;\"\u003e\n\u003cdiv style=\"display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px;\"\u003e\n\u003cstrong\u003eGiovanni R. — Italy\u003c\/strong\u003e \u003cspan style=\"color: #ffb400; font-size: 14px;\"\u003e★★★★☆\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #4a5568;\"\u003e\"Portautensile destro molto preciso. Ottima stabilità della vite di bloccaggio M2.2. Perfetto per la sgrossatura e finitura di piccoli alberi meccanici.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; background-color: #fdfdfd; padding: 15px; border-radius: 6px; border-left: 4px solid #47479F;\"\u003e\n\u003cdiv style=\"display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px;\"\u003e\n\u003cstrong\u003eKenji T. — Japan\u003c\/strong\u003e \u003cspan style=\"color: #ffb400; font-size: 14px;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #4a5568;\"\u003e\"スターの自動旋盤で小径ピンの直角肩削り用にSTGCR1212H09を導入しました。主偏角が91度なので、細いワークでも背分力がかからず倒れが発生しません。TCMT0902チップの固定が非常に安定しており、寸法がピタッと決まります。\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; background-color: #fdfdfd; padding: 15px; border-radius: 6px; border-left: 4px solid #47479F;\"\u003e\n\u003cdiv style=\"display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px;\"\u003e\n\u003cstrong\u003eOliver D. — United Kingdom\u003c\/strong\u003e \u003cspan style=\"color: #ffb400; font-size: 14px;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #4a5568;\"\u003e\"A solid industrial toolholder. The chip clearance profile around the triangle tip is outstanding. Prevents long curly bird-nesting when processing mild steel.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 10px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; margin-bottom: 20px; font-weight: bold;\"\u003e8. AI Assistant-Style Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 20px;\"\u003e\n\u003cdiv style=\"background-color: #f8f9fa; padding: 18px; border-radius: 6px; border-left: 3px solid #47479F;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; font-size: 15px; color: #47479f; font-weight: bold;\"\u003eWhy does the STGCR holder have a 91-degree lead angle instead of exactly 90 degrees?\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #333333;\"\u003eThe additional 1-degree offset is a deliberate industrial clearance vector. It ensures that only the primary cutting point of the TCMT triangle insert contacts the material. This prevents the secondary trailing flank edge from rubbing against the freshly machined 90° shoulder face, preserving surface integrity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f8f9fa; padding: 18px; border-radius: 6px; border-left: 3px solid #47479F;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; font-size: 15px; color: #47479f; font-weight: bold;\"\u003eCan I mount left-hand TCMT inserts into this right-hand STGCR pocket?\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #333333;\"\u003eStandard indexable triangle turning inserts (such as \u003cstrong\u003eTCMT 090204 \/ TCGT 090202\u003c\/strong\u003e) feature complete bidirectional structural symmetry. There are no distinct left or right-hand variations for these inserts. They fit identically into right-hand (STGCR) or left-hand (STGCL) shanks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f8f9fa; padding: 18px; border-radius: 6px; border-left: 3px solid #47479F;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; font-size: 15px; color: #47479f; font-weight: bold;\"\u003eWhat components are supplied within the baseline package kit?\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #333333;\"\u003eEach single ordered unit consists of one premium STGCR1212H09 tool holder alloy steel shank, one precision-threaded M2.2 × 5 insert-locking screw, and a matching flag-type industrial Torx T6 wrench key. \u003cem\u003eNote: Indexable carbide inserts must be ordered separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":40737460617388,"sku":"STGCR1212H09","price":14.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_STGCR1212H09_12x12mm_indexable_right-hand_91-degree_external_turning_tool_holder_for_CNC_lathe_machining_compatible_with_TCMT_0902_triangle_inserts..jpg?v=1779492216","url":"https:\/\/cnchome-beyond.com\/products\/beyond-stgcr1212h09-external-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}