{"product_id":"beyond-mgevl2020-4t5a-external-turning-tool-holder","title":"BEYOND MGEVL2020-4T5A Spring Steel External Left-Hand Grooving \u0026 Parting Tool Holder – 20x20mm Shank, 4mm Groove Width for MGMN400 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 MGEVL2020-4T5A Spring Steel External Left-Hand 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 Left-Hand Grooving \u0026amp; Parting Solution for MGMN400 Inserts (20x20mm 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 MGEVL2020-4T5A is a high-rigidity left-hand external grooving and parting tool holder constructed from premium 60Si2Mn spring steel. Designed specifically for MGMN400 indexable carbide inserts, it delivers exceptional chatter suppression and dimensional stability for precision CNC turning operations.\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 left-hand tool holder and chipbreaker geometry combination delivers optimal performance for stable parting and precision 4mm grooving with MGMN400 inserts?\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px; font-size: 14px;\"\u003eThe \u003cstrong\u003eBEYOND MGEVL2020-4T5A\u003c\/strong\u003e is engineered for high-accuracy metal removal in applications requiring a 20x20mm left-hand tool orientation. Manufactured from resilient 60Si2Mn spring steel, this holder absorbs high cyclic cutting forces and dampens harmonic vibrations. When paired with MGMN400 indexable carbide inserts, it provides clean chip evacuation for alloy, carbon, and stainless 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;\"\u003eM\u003c\/strong\u003e\u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eSeries\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;\"\u003eGroove\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;\"\u003eE\u003c\/strong\u003e\u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eExternal\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;\"\u003eV\u003c\/strong\u003e\u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eClamp\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;\"\u003eL\u003c\/strong\u003e\u003cspan style=\"font-size: 10px; color: #4a5568;\"\u003eLeft 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;\"\u003e2020\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: 40px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 13px;\"\u003e4\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;\"\u003eT5A\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 tool holder orientations or matching inserts?\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=MGMN400\" 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 Offers high yield strength and elastic recovery to resist plastic deformation under cyclic lateral loads.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSecure Left-Hand Clamping Pocket:\u003c\/strong\u003e Securely locks MGMN400 inserts, preventing movement during aggressive feed passes.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSuperior Vibration Suppression:\u003c\/strong\u003e Minimizes chattering and harmonic resonance to maintain pristine workpiece surface finishes.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003ePrecision ISO Compliance:\u003c\/strong\u003e Manufactured to international standards for reliable integration with standard CNC lathe turrets.\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: 20mm x 20mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eApprox. 3\/4\" x 3\/4\" (0.787\" 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: 4mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eApprox. 0.157\" 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;\"\u003e120 - 220\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e0.08 - 0.18\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;\"\u003e90 - 140\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e0.06 - 0.14\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 Left-hand external face grooving, heavy-duty parting-off operations, and medium-to-large diameter profiling on CNC turning centers.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 10px;\"\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Perfectly fits MGMN400 indexable carbide inserts and standard 20x20mm lathe tool 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 superior elasticity retention, preventing permanent deformation under continuous high-temperature production 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 high-volume, demanding CNC manufacturing.\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;\"\u003eRigorous quality verification for reliable insert 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 MGMN400 carbide inserts included with this tool 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: What is the primary advantage of a left-hand (L) configuration?\u003c\/p\u003e\n\u003cp style=\"margin: 4px 0 0 0; font-size: 13px;\"\u003eA: Left-hand orientation allows optimal tool clearance and chip flow for specific lathe setups and reverse feed applications.\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: Does this fit standard 20x20mm square lathe tool turrets?\u003c\/p\u003e\n\u003cp style=\"margin: 4px 0 0 0; font-size: 13px;\"\u003eA: Yes, it is built exactly to standard 20mm metric 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 structural clamping stiffness and fatigue limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquivalent Models:\u003c\/strong\u003e Fully interchangeable with standard global 20x20 external left-hand grooving tool 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) heavy-duty turning environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTroubleshooting Tip:\u003c\/strong\u003e Verify proper tool tip center height alignment to prevent asymmetric flank wear and edge chipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthoritative Endorsement:\u003c\/strong\u003e Validated through industrial metalworking benchmarks for vibration suppression in deep grooving operations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"OYYU\/BEYOND","offers":[{"title":"Default Title","offer_id":43659750801580,"sku":"MGEVL2020-4T5A","price":25.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_MGEVL2020-4T5A_left-hand_external_grooving_tool_holder_side_view.jpg?v=1787215405","url":"https:\/\/cnchome-beyond.com\/products\/beyond-mgevl2020-4t5a-external-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}