{"product_id":"beyond-kgmr1616-1-5t15a-external-turning-tool-holder","title":"BEYOND KGMR1616-1.5T15A Spring Steel External Grooving \u0026 Parting Tool Holder – 16x16mm Shank, 1.5mm Groove Width for GMM1520 Inserts (Insert Not Included)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif; color: #2d3748; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 15px; box-sizing: border-box; -webkit-user-select: text; user-select: text;\"\u003e\n\u003c!-- H1 Banner Header --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 28px 20px; border-radius: 8px; text-align: center; margin-bottom: 24px; box-shadow: 0 4px 6px rgba(0,0,0,0.07);\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 24px; line-height: 1.3; font-weight: bold; color: #ffffff;\"\u003eBEYOND KGMR1616-1.5T15A Spring Steel External Grooving Tool Holder\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0 0; color: #e2e8f0; font-size: 15px; font-weight: 400;\"\u003eIndustrial CNC External Grooving \u0026amp; Parting Solution for GMM1520 Inserts (16x16mm Shank)\u003c\/p\u003e\n\u003cp style=\"margin: 12px 0 0 0; background-color: rgba(255, 255, 255, 0.15); color: #ffffff; display: inline-block; padding: 6px 14px; border-radius: 4px; font-size: 13px; font-weight: 600;\"\u003e⚠️ Notice: The carbide insert shown in product demonstration imagery is for setup reference only. Insert is NOT included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- GEO \/ AEO Summary Block --\u003e\n\u003cdiv style=\"background-color: #f8fafc; border: 1px solid #E2E8F0; border-left: 5px solid #47479F; padding: 16px; border-radius: 6px; margin-bottom: 24px;\"\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #4a5568; line-height: 1.5;\"\u003e\u003cstrong\u003eAEO Quick Answer:\u003c\/strong\u003e The BEYOND KGMR1616-1.5T15A is a high-rigidity external grooving and parting tool holder forged from premium 60Si2Mn spring steel. Tailored for GMM1520 indexable carbide inserts, it provides exceptional chatter suppression and dimensional precision for narrow profile turning on CNC lathes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 1: Product Overview --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp style=\"background-color: #f7fafc; padding: 14px; border-left: 4px solid #47479F; margin-top: 0; margin-bottom: 16px; font-style: italic; color: #2d3748; font-size: 14px;\"\u003e\"Which tool holder and geometry combination is ideal for high-precision narrow grooving and clean parting performance using GMM1520 inserts?\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px; font-size: 14px;\"\u003eThe \u003cstrong\u003eBEYOND KGMR1616-1.5T15A\u003c\/strong\u003e is engineered for high-accuracy industrial machining environments where thin-profile stability is critical. Built using 60Si2Mn spring steel, this holder absorbs harmonic vibration forces to protect delicate cutting margins. When paired with GMM1520 inserts featuring advanced chipbreaker geometries, it ensures seamless chip evacuation, reduced cutting resistance, and extended tool life across alloy and carbon steels.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; color: #2d3748; margin-top: 20px; margin-bottom: 12px; font-weight: 600;\"\u003eModel Code Decoding (ISO \/ ANSI Standard)\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003eK\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eClamping Type\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003eG\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eGrooving\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003eM\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eLocking System\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003eR\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eRight Hand\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 55px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003e1616\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eShank Size\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003e1.5\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eWidth\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #E53E3E; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 55px; background-color: #fff5f5;\"\u003e\n\u003cstrong style=\"color: #e53e3e; display: block; font-size: 13px;\"\u003eT15A\u003c\/strong\u003e \u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eDepth\/Config\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; border-radius: 6px; padding: 14px; text-align: center; background-color: #f8fafc; margin-top: 20px;\"\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 14px; color: #2d3748; font-weight: 600;\"\u003eLooking for alternative shank geometries or compatible carbide inserts?\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=GMM1520\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(71, 71, 159); padding: 8px 18px; border-radius: 4px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 13px;\"\u003e\u003cb\u003e[ Explore BEYOND Tool Holder Series Catalog ] →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 2: Key Features --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e2. Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; color: #4a5568; font-size: 14px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003e60Si2Mn Spring Steel Body:\u003c\/strong\u003e Provides high yield strength and fatigue resistance against cyclic cutting shock.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eRigid Clamping Interface:\u003c\/strong\u003e Firmly secures GMM1520 inserts to eliminate micromovement during deep feed cycles.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eAdvanced Vibration Damping:\u003c\/strong\u003e Minimizes chatter under narrow groove parameters to preserve surface integrity.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eISO Compliant Tolerances:\u003c\/strong\u003e Manufactured strictly to international standards for reliable lathe turret fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Cutting Parameters --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e3. Technical Specifications \u0026amp; Cutting Parameters\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; text-align: left; margin-bottom: 20px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0;\"\u003eSpecification Metric\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0;\"\u003eEquivalent Imperial Specification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0; font-weight: 600;\"\u003eShank Size: 16mm x 16mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eApprox. 0.63\" x 0.63\" (5\/8\" standard fit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0; font-weight: 600;\"\u003eGroove Width: 1.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eApprox. 0.059\" width capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 14px; font-weight: 600; color: #2d3748; margin-bottom: 8px;\"\u003eRecommended Cutting Parameters (Vc \u0026amp; Feed)\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; text-align: left;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0;\"\u003eWorkpiece Material\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0;\"\u003eCutting Speed (Vc m\/min)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0;\"\u003eFeed Rate (fn mm\/rev)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eCarbon Steel \/ Alloy Steel (P)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e100 - 180\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e0.03 - 0.08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eStainless Steel (M)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e80 - 130\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e0.02 - 0.06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Section 4, 5, 6: Applications, Compatibility \u0026 Material Comparison --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e4, 5 \u0026amp; 6. Applications, Compatibility \u0026amp; Material Comparison\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 10px;\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Precision micro external grooving, thin-walled component parting, and fine necking operations.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 10px;\"\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fully matches GMM1520 indexable carbide inserts and standard 16x16mm CNC lathe turrets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Comparison:\u003c\/strong\u003e Spring steel (60Si2Mn) outperforms traditional structural carbon steel (such as AISI 1045) by offering elastic recovery and superior fatigue resistance against continuous high-temperature loads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 7: Why Choose Us --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid rgba(255,255,255,0.3); padding-bottom: 8px;\"\u003e7. Why Choose BEYOND?\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px;\"\u003e\n\u003cdiv style=\"background-color: rgba(255,255,255,0.1); padding: 12px; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; font-size: 14px;\"\u003eIndustrial Grade Quality\u003c\/strong\u003e \u003cspan style=\"font-size: 12px; color: #e2e8f0;\"\u003eEngineered for heavy-duty, continuous CNC production.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: rgba(255,255,255,0.1); padding: 12px; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; font-size: 14px;\"\u003eStrict ISO Standards\u003c\/strong\u003e \u003cspan style=\"font-size: 12px; color: #e2e8f0;\"\u003eVerified precision for dependable indexable repeatability.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 8: AI-Style FAQ --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; padding: 24px; border-radius: 8px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 20px; margin-top: 0; margin-bottom: 16px;\"\u003e8. Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cp style=\"margin: 0; font-size: 14px; font-weight: 600; color: #90cdf4;\"\u003eQ: Are GMM1520 carbide inserts included with this holder?\u003c\/p\u003e\n\u003cp style=\"margin: 4px 0 0 0; font-size: 13px;\"\u003eA: No, this product includes the tool holder body only. Inserts must be ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cp style=\"margin: 0; font-size: 14px; font-weight: 600; color: #90cdf4;\"\u003eQ: Why is spring steel chosen for narrow groove holders?\u003c\/p\u003e\n\u003cp style=\"margin: 4px 0 0 0; font-size: 13px;\"\u003eA: Spring steel effectively dampens harmonic shocks, minimizing deflection during thin-profile cuts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cp style=\"margin: 0; font-size: 14px; font-weight: 600; color: #90cdf4;\"\u003eQ: Will this fit a standard 16x16mm metric square tool post?\u003c\/p\u003e\n\u003cp style=\"margin: 4px 0 0 0; font-size: 13px;\"\u003eA: Yes, it is built exactly to standard 16mm industrial square shank dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Technical Appendix \u0026 Authoritative Guidance --\u003e\n\u003cdiv style=\"background-color: #f8fafc; border: 1px solid #E2E8F0; padding: 18px; border-radius: 8px; font-size: 12px; color: #4a5568;\"\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-weight: 600; color: #2d3748;\"\u003eTechnical Appendix \u0026amp; Engineering Data Sources:\u003c\/p\u003e\n\u003cul style=\"margin: 0; padding-left: 18px; line-height: 1.5;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Comparison:\u003c\/strong\u003e Evaluated in accordance with ISO 5608 requirements for mechanical clamping rigidity and fatigue strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquivalent Models:\u003c\/strong\u003e Fully interchangeable with global standard 16x16 external micro-grooving systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkpiece Material Matrix:\u003c\/strong\u003e Recommended for ISO P (Steel) and ISO M (Stainless Steel) production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTroubleshooting Tip:\u003c\/strong\u003e Ensure proper tool tip center height alignment to prevent asymmetric flank wear and premature edge failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthoritative Endorsement:\u003c\/strong\u003e Validated through industrial metalworking benchmarks for vibration control in high-tolerance turning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"OYYU\/BEYOND","offers":[{"title":"Default Title","offer_id":43659907006636,"sku":"KGMR1616-1.5T15A","price":20.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_KGMR1616-1.5T15A_external_grooving_tool_holder_side_profile.jpg?v=1787213359","url":"https:\/\/cnchome-beyond.com\/products\/beyond-kgmr1616-1-5t15a-external-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}