{"product_id":"beyond-kgmr2020k-3t20-external-grooving-parting-tool-holder","title":"Beyond KGMR2020K-3T20 External Grooving Tool Holder for GMM3020 Inserts","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; line-height: 1.6; color: #333; max-width: 100%; margin: 0 auto; background: #ffffff;\"\u003e\n\u003c!-- Section: H1 Header --\u003e\n\u003cdiv style=\"background-color: #47479f; padding: 40px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"color: #ffffff; margin: 0; font-size: 26px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px;\"\u003eBEYOND KGMR2020K-3T20 External Grooving Holder\u003c\/h1\u003e\n\u003cp style=\"color: #e0e0ff; margin-top: 10px; font-size: 16px;\"\u003ePrecision Parting and Shallow Grooving Solution for CNC Lathes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 1: Product Overview --\u003e\n\u003csection style=\"padding: 30px 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px; font-size: 22px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cdiv style=\"font-style: italic; color: #47479f; background: #f4f4fb; padding: 25px; border-radius: 8px; border-left: 5px solid #47479F; margin-bottom: 20px;\"\u003e\"Looking for a 20mm shank grooving holder that minimizes vibration during high-feed parting operations in carbon steel?\"\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND KGMR2020K-3T20\u003c\/strong\u003e is a specialized external grooving and parting tool holder designed for maximum rigidity. Utilizing high-strength alloy steel with a professional-grade quenching process, this holder is engineered to hold \u003cstrong\u003eGMM series inserts\u003c\/strong\u003e (specifically 3mm width). The unique clamping mechanism ensures that even under heavy side loads during grooving, the insert remains perfectly seated, preventing edge chipping and improving surface finish.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- Section 2: Key Features --\u003e\n\u003csection style=\"padding: 30px 20px; background-color: #47479f; color: #ffffff; border-radius: 10px; margin: 0 10px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 22px;\"\u003eKey Performance Features\u003c\/h2\u003e\n\u003cul style=\"list-style-type: none; padding: 0;\"\u003e\n\u003cli style=\"margin-bottom: 12px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; color: #a2a2ff;\"\u003e✔\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eHigh Rigidity Shank:\u003c\/strong\u003e 20x20mm dimensions provide the mass necessary to dampen harmonic vibrations during parting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; color: #a2a2ff;\"\u003e✔\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eSuperior Clamping Force:\u003c\/strong\u003e Top-press screw design ensures the insert doesn't move during intermittent cutting.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; color: #a2a2ff;\"\u003e✔\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eAdvanced Surface Coating:\u003c\/strong\u003e The holder body features a corrosion-resistant black oxide finish for long tool life in wet environments.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Nomenclature --\u003e\n\u003csection style=\"padding: 35px 20px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eNomenclature Decoding (How to Read KGMR)\u003c\/h2\u003e\n\u003c!-- Model Decoding Box --\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; text-align: center; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eClamping Type\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003eG\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003e2020\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e20x20mm\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e125mm Length\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003e3\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eInsert Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 70px; border-radius: 5px;\"\u003e\n\u003cstrong\u003eT20\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eMax Depth\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Specifications Table --\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 25px; min-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMetric (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eImperial (ANSI)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eShank Size\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e20 x 20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.787 x 0.787 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTotal Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e125 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e4.921 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGroove Width\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.118 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMax Depth (T-max)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.787 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Cutting Data --\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; text-align: center;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eWorkpiece Material\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFeed (f)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCarbon Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e120 - 180 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 - 0.20 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eStainless Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e80 - 140 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.08 - 0.15 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- Insert Connection Box --\u003e\n\u003csection style=\"padding: 20px;\"\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 25px; text-align: center; border-radius: 12px; background-color: #f8f8ff;\"\u003e\n\u003cp style=\"margin-bottom: 12px; font-weight: bold;\"\u003eRequired Grooving Inserts:\u003c\/p\u003e\n\u003cp style=\"font-size: 18px; color: #47479f; font-weight: 800;\"\u003eBEYOND GMM3020 Series (3mm Width)\u003c\/p\u003e\n\u003ca style=\"display: inline-block; margin-top: 15px; padding: 12px 25px; background-color: #47479f; color: white; text-decoration: none; border-radius: 6px; font-weight: bold;\" href=\"\/collections\/grooving-inserts\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=gmm3020\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; margin-top: 15px; padding: 12px 25px; background-color: rgb(71, 71, 159); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 6px;\"\u003e\u003cb\u003eFind Compatible Inserts →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 4 \u0026 5: Applications \u0026 Compatibility --\u003e\n\u003csection style=\"padding: 20px;\"\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px;\"\u003e\n\u003cdiv style=\"background: #f9f9f9; padding: 25px; border-radius: 10px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003ePrimary Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eExternal grooving for shafts and rollers.\u003c\/li\u003e\n\u003cli\u003eParting-off operations for bar stock up to 40mm diameter.\u003c\/li\u003e\n\u003cli\u003eProfile grooving in steel, stainless, and aluminum.\u003c\/li\u003e\n\u003cli\u003eIdeal for medium to high-speed CNC turning centers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; padding: 25px; border-radius: 10px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eDevice Compatibility\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eCNC Lathes (Turret and Gang Tooling).\u003c\/li\u003e\n\u003cli\u003eConventional Lathes with 20mm Tool Posts.\u003c\/li\u003e\n\u003cli\u003eAutomatic Screw Machines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 6: Material Comparison --\u003e\n\u003csection style=\"padding: 30px 20px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eBEYOND Holder Material Comparison\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #eee;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSeries\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMaterial Base\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePerformance Advantage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f4f4fb; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eKGMR (Professional)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e42CrMo Alloy Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh Impact Resistance \u0026amp; Fatigue Strength\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStandard Series\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eC45 Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEconomical, General Turning Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 7: Why Choose Us \u0026 Reviews --\u003e\n\u003csection style=\"padding: 40px 20px; text-align: center;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eTrusted by Machinists Globally\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; text-align: left;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cp style=\"color: #f1c40f; margin-bottom: 5px;\"\u003e⭐⭐⭐⭐⭐\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\"The KGMR2020 is rock solid. Parting 304 stainless was a breeze with no chatter.\"\u003c\/p\u003e\n\u003csmall\u003e— David S., USA 🇺🇸\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cp style=\"color: #f1c40f; margin-bottom: 5px;\"\u003e⭐⭐⭐⭐⭐\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\"Preis-Leistung ist unschlagbar. Sehr passgenau für GMM Einsätze.\"\u003c\/p\u003e\n\u003csmall\u003e— Hans W., Germany 🇩🇪\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cp style=\"color: #f1c40f; margin-bottom: 5px;\"\u003e⭐⭐⭐⭐⭐\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\"Holders from BEYOND are always reliable. Great surface finish.\"\u003c\/p\u003e\n\u003csmall\u003e— Fabio R., Italy 🇮🇹\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cp style=\"color: #f1c40f; margin-bottom: 5px;\"\u003e⭐⭐⭐⭐⭐\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\"Very fast delivery to Tokyo. Tool fits perfectly.\"\u003c\/p\u003e\n\u003csmall\u003e— Kenji A., Japan 🇯🇵\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 8: FAQ --\u003e\n\u003csection style=\"padding: 30px 20px; background-color: #f4f4fb;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"max-width: 800px; margin: 0 auto;\"\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: What insert width does the -3T20 indicate?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: The \"3\" indicates a groove width of 3.0mm, and \"T20\" means the maximum cutting depth (groove depth) is 20mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Does this holder include the inserts?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: No, this is the tool holder only. It includes the wrench and clamping screws. Inserts must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Is this a right-hand or left-hand tool?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: The \"R\" in KGMR signifies a Right-Hand orientation, which is standard for most external turning turret setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Footer Tip --\u003e\n\u003cdiv style=\"background-color: #333; color: #ffffff; padding: 25px; text-align: center; font-size: 13px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional Tip:\u003c\/strong\u003e When using the KGMR for parting off, always ensure the tool is set exactly to the center height of the workpiece to prevent nub formation and premature insert failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43642145964204,"sku":"KGMR2020K-3T20","price":22.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Beyond_KGMR2020K-3T20_external_grooving_tool_holder_for_CNC_lathes.jpg?v=1778324350","url":"https:\/\/cnchome-beyond.com\/products\/beyond-kgmr2020k-3t20-external-grooving-parting-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}