{"product_id":"mghh220r08-20-30a-20x20mm-external-grooving-holder","title":"BEYOND Spring Steel External Grooving Tool Holder MGHH220R08-20\/30A | 20x20mm Shank, 2.0mm Groove Width, Compatible with MGMN200 CNC Lathe Inserts (Excludes Inserts)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #2d3748; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 20px; box-sizing: border-box; -webkit-user-select: text; user-select: text;\"\u003e\n\u003c!-- H1 Main Title Banner --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 30px 20px; border-radius: 8px; text-align: center; margin-bottom: 20px;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 24px; color: #ffffff; line-height: 1.3;\"\u003eBEYOND MGHH220R08-20\/30A Spring Steel External Grooving \u0026amp; Parting Tool Holder\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0 0; font-size: 15px; color: #e2e8f0;\"\u003eIndustrial-Grade CNC Lathe Tooling for High-Precision Slotting \u0026amp; Cut-Off Operations\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Non-inclusion Notice --\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #e53e3e; padding: 12px; margin-bottom: 20px; font-size: 14px; color: #c53030; font-weight: 600; border-radius: 0 6px 6px 0;\"\u003e⚠️ Important Component Notice: All product illustrations displaying carbide inserts are for assembly demonstration only. The matching MGMN200 indexable insert is NOT included with this tool holder and must be purchased separately.\u003c\/div\u003e\n\u003c!-- GEO \/ AEO Structured Snippet --\u003e\n\u003cdiv style=\"background-color: #edf2f7; border-left: 5px solid #47479f; padding: 15px; border-radius: 0 6px 6px 0; margin-bottom: 20px; font-size: 14px;\"\u003e\n\u003cstrong\u003eAEO Voice Search Summary:\u003c\/strong\u003e The BEYOND MGHH220R08-20\/30A is a heavy-duty external grooving and parting-off tool holder forged from 60Si2Mn spring steel. Designed for high-stability CNC lathe operations utilizing MGMN200 carbide inserts, it provides exceptional chatter suppression and rigid clamping across ISO P, M, and K material classifications.\u003c\/div\u003e\n\u003c!-- Section 1: Product Overview --\u003e\n\u003cdiv style=\"border: 2px solid #47479f; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #47479f; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp style=\"font-style: italic; background-color: #f7fafc; padding: 12px; border-left: 4px solid #47479f; margin-top: 0;\"\u003e\"Which tool holder provides maximum chatter resistance and dimensional stability for shallow-to-medium external grooving and parting-off on CNC lathes using MGMN200 inserts?\"\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND MGHH220R08-20\/30A\u003c\/strong\u003e external grooving tool holder (also searched as a spring steel grooving bar, CNC parting tool holder, and external slotting tool post) is engineered to eliminate harmonic chatter and micro-deflection during intense turning cycles. Forged from high-elasticity spring steel, the tool body absorbs high-frequency vibrations, while the precision-ground insert seat guarantees absolute clamping security for \u003cstrong\u003eMGMN200\u003c\/strong\u003e carbide inserts. Its geometry optimizes chip compression and ensures clean chip evacuation away from the workpiece floor.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; font-size: 16px; margin-top: 20px;\"\u003eISO \/ ANSI Nomenclature Breakdown\u003c\/h3\u003e\n\u003cp style=\"font-size: 13px; color: #4a5568;\"\u003eUnderstand every letter and digit of your tool designation:\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 15px 0;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479f; padding: 10px 15px; border-radius: 6px; text-align: center; flex: 1; min-width: 90px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"display: block; color: #47479f; font-size: 16px;\"\u003eMG\u003c\/strong\u003e\u003cspan style=\"font-size: 11px; color: #4a5568;\"\u003eGrooving System\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479f; padding: 10px 15px; border-radius: 6px; text-align: center; flex: 1; min-width: 90px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"display: block; color: #47479f; font-size: 16px;\"\u003eHH\u003c\/strong\u003e\u003cspan style=\"font-size: 11px; color: #4a5568;\"\u003eHeavy Holder\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479f; padding: 10px 15px; border-radius: 6px; text-align: center; flex: 1; min-width: 90px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"display: block; color: #47479f; font-size: 16px;\"\u003e220\u003c\/strong\u003e\u003cspan style=\"font-size: 11px; color: #4a5568;\"\u003e2.0mm Width\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479f; padding: 10px 15px; border-radius: 6px; text-align: center; flex: 1; min-width: 90px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"display: block; color: #47479f; font-size: 16px;\"\u003eR\u003c\/strong\u003e\u003cspan style=\"font-size: 11px; color: #4a5568;\"\u003eRight Hand\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479f; padding: 10px 15px; border-radius: 6px; text-align: center; flex: 1; min-width: 90px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"display: block; color: #47479f; font-size: 16px;\"\u003e08\u003c\/strong\u003e\u003cspan style=\"font-size: 11px; color: #4a5568;\"\u003eShank Size\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479f; padding: 10px 15px; border-radius: 6px; text-align: center; flex: 1; min-width: 90px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"display: block; color: #47479f; font-size: 16px;\"\u003e20\/30A\u003c\/strong\u003e\u003cspan style=\"font-size: 11px; color: #4a5568;\"\u003eDepth Capacity\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Tool Holder Link Box --\u003e\n\u003cdiv style=\"border: 2px dashed #47479f; border-radius: 8px; padding: 15px; text-align: center; background-color: #f0f4f8; margin: 20px 0;\"\u003e\n\u003cspan style=\"font-size: 14px; color: #2d3748;\"\u003eLooking for alternative shank sizes or matching components?\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=MGMN200\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 15px;\"\u003e\u003cb\u003e[ View Full BEYOND MGHH 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=\"border: 2px solid #47479f; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #47479f; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e2. Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eSpring Steel Damping Body:\u003c\/strong\u003e Forged from premium 60Si2Mn spring steel, offering superior elastic recovery and fatigue resistance against cyclic cutting loads.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eRigid Top-Clamp Mechanism:\u003c\/strong\u003e Secures the carbide insert under extreme lateral pressures, preventing micro-shift or edge chipping at high spindle speeds.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eOptimized Rake Geometry:\u003c\/strong\u003e Engineered chip-breaker pockets ensure smooth scroll formation and prevent bird-nesting during parting cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Surface Finish:\u003c\/strong\u003e Chemically treated black-oxide coating protects against oxidation and coolant degradation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Cutting Parameters --\u003e\n\u003cdiv style=\"border: 2px solid #47479f; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #47479f; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e3. Technical Specifications \u0026amp; Cutting Parameters\u003c\/h2\u003e\n\u003ch3 style=\"color: #47479f; font-size: 16px;\"\u003eMetric vs. Imperial Comparison\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"border: 1px solid #cbd5e0; padding: 10px; text-align: left; font-size: 14px;\"\u003eSpecification Parameter\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cbd5e0; padding: 10px; text-align: left; font-size: 14px;\"\u003eMetric Standard\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cbd5e0; padding: 10px; text-align: left; font-size: 14px;\"\u003eImperial Equivalent\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f7fafc;\"\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eShank Cross-Section (H × B)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e20 mm × 20 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e0.787\" × 0.787\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eOverall Tool Length (L)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e125 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e4.92\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7fafc;\"\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eInsert Slot Width\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e2.0 mm (MGMN200)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e0.079\" (MGMN200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eMaximum Cutting Depth (CDX)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e20 mm – 30 mm max\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e0.79\" – 1.18\" max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"color: #47479f; font-size: 16px; margin-top: 20px;\"\u003eRecommended Cutting Parameters (MGMN200 Insert)\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"border: 1px solid #cbd5e0; padding: 10px; text-align: left; font-size: 14px;\"\u003eWorkpiece Material Group\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cbd5e0; padding: 10px; text-align: left; font-size: 14px;\"\u003eCutting Speed (Vc, m\/min)\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #cbd5e0; padding: 10px; text-align: left; font-size: 14px;\"\u003eFeed Rate (f, mm\/rev)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f7fafc;\"\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eISO P (Carbon \u0026amp; Alloy Steel)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e120 – 180 m\/min\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e0.04 – 0.08 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eISO M (Stainless Steel)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e90 – 140 m\/min\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e0.03 – 0.06 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7fafc;\"\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003eISO K (Cast Iron)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e110 – 160 m\/min\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5e0; padding: 10px; font-size: 14px;\"\u003e0.05 – 0.09 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Section 4: Applications --\u003e\n\u003cdiv style=\"border: 2px solid #47479f; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #47479f; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e4. Product Applications\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eAutomotive Transmission Components:\u003c\/strong\u003e External snap-ring groove machining and parting-off of high-strength alloy shafts.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eHydraulic Cylinder Manufacturing:\u003c\/strong\u003e Standard O-ring sealing channels and precision necking operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral CNC Turning Centers:\u003c\/strong\u003e High-efficiency profiling, grooving, and cut-off tasks across job shops and production lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 5: Compatibility --\u003e\n\u003cdiv style=\"border: 2px solid #47479f; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #47479f; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e5. Compatibility \u0026amp; Equipment\u003c\/h2\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cstrong\u003eInsert Compatibility:\u003c\/strong\u003e Fully compatible with all ISO standard \u003cstrong\u003eMGMN200\u003c\/strong\u003e indexable carbide inserts (2.0mm width).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMachine Turrets:\u003c\/strong\u003e Installs securely into standard 20mm CNC lathe tool turrets, gang tool posts, and conventional engine lathe quick-change tool holders.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e Fitted with high-tensile Torx locking screws designed to withstand repeated torque clamping without thread stripping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 6: Material Comparison --\u003e\n\u003cdiv style=\"border: 2px solid #47479f; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #47479f; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e6. Material Comparison: Spring Steel vs. Standard Tool Steel\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong\u003e60Si2Mn Spring Steel Advantage:\u003c\/strong\u003e Unlike conventional carbon tool steels that suffer permanent plastic deformation under high transverse loads, spring steel possesses high elasticity and tensile yield strength. This ensures the tool returns instantly to its true center height after cutting interruptions, greatly improving tool life and surface finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 7: Why Choose Us --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 24px; border-radius: 8px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #ffffff; margin-top: 0; border-bottom: 2px solid rgba(255,255,255,0.3); padding-bottom: 8px; font-size: 20px;\"\u003e7. Why Choose BEYOND Tooling?\u003c\/h2\u003e\n\u003cul style=\"color: #f7fafc; line-height: 1.8; margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict ISO 5608 Compliance:\u003c\/strong\u003e Manufactured under rigorous dimensional control ensuring \u0026lt;0.01mm pocket repeatability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Factory Pricing:\u003c\/strong\u003e Premium industrial-grade cutting tools delivered straight from manufacturing lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert Engineering Support:\u003c\/strong\u003e Dedicated technical assistance for feed optimization, grade selection, and custom machining challenges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 8: AI-Style FAQ --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: #ffffff; border-bottom: 2px solid #47479f; padding-bottom: 8px; font-size: 20px;\"\u003e8. Frequently Asked Questions\u003c\/h2\u003e\n\u003cp style=\"color: #ffffff; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: Does the MGHH220R08-20\/30A package include cutting inserts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"color: #e2e8f0; margin-top: 0; font-size: 14px;\"\u003eA: No. To allow machinists to select specific PVD or CVD grades tailored to their workpiece material, the MGMN200 inserts are sold separately.\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: What does the designation \"20\/30A\" indicate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"color: #e2e8f0; margin-top: 0; font-size: 14px;\"\u003eA: It defines the optimized cutting depth range and shank clearance envelope, supporting shallow to intermediate groove depths up to 20mm to 30mm maximum capacity.\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; margin-bottom: 4px;\"\u003e\u003cstrong\u003eQ: How can I prevent edge chipping during deep parting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"color: #e2e8f0; margin-top: 0; margin-bottom: 0; font-size: 14px;\"\u003eA: Ensure your tool is set precisely on center height, maintain flood coolant pressure, and reduce the feed rate by 30% right before final part breakthrough.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Footer Technical Notes \u0026 Tips --\u003e\n\u003cdiv style=\"font-size: 13px; color: #4a5568; border-top: 2px solid #e2e8f0; padding-top: 20px; margin-top: 30px;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cstrong\u003eGrade Comparison Tip:\u003c\/strong\u003e Use PVD-coated grades (TiAlN) for ISO M stainless steels and high-temp alloys; choose CVD-coated grades (TiCN\/Al2O3) for high-speed ISO P carbon steels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models:\u003c\/strong\u003e Direct cross-compatibility with industry-standard modular 2.0mm external grooving blade frameworks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Guide:\u003c\/strong\u003e Rapid flank wear indicates excessive cutting speed (Vc); built-up edge points to inadequate coolant concentration or low cutting speed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Matrix:\u003c\/strong\u003e Certified performance across ISO P (Steels), ISO M (Stainless), and ISO K (Cast Iron) workpiece groups.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong\u003eAuthoritative Endorsement:\u003c\/strong\u003e Dimensional tolerances and material properties benchmarked against \u003cstrong\u003eISO 5608\u003c\/strong\u003e tool holder standards and ASTM E18 hardness testing protocols.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"OYYU\/BEYOND","offers":[{"title":"Default Title","offer_id":43653530812588,"sku":"MGHH220R08-20\/30A","price":42.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_MGHH220R08_2030A_spring_steel_external_grooving_tool_holder_side_profile.jpg?v=1787564047","url":"https:\/\/cnchome-beyond.com\/products\/mghh220r08-20-30a-20x20mm-external-grooving-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}