{"product_id":"seco-75056400-lh-mwln-indexable-turning-toolholder","title":"Seco 75056400 Lh Mwln Indexable Turning Toolholder","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 75056400 is a left-hand MWLN-style indexable turning toolholder designed for use on CNC lathes and manual turning centers. It accepts WN..33. series inserts secured by a combination clamp and pin holding method, providing rigid, repeatable insert location under interrupted cuts and continuous turning operations. The toolholder features a negative rake geometry with a -5.44 degree rake angle and a -6 degree lead angle, making it well suited for heavy material removal on a wide range of workpiece materials. The 0.625 inch by 0.625 inch square shank seats directly into standard tool blocks and turret stations.\u003c\/p\u003e\n\u003cp\u003eThis toolholder is intended for external turning applications in both production and job-shop environments. The Multiple Lock series design accommodates universal workpiece materials, covering ISO material groups H, K, M, N, P, and S, which span hardened materials, cast iron, stainless steel, nonferrous alloys, steel, and high-temperature alloys. Machinists and CNC operators working on medium-sized lathes will find the 4-inch overall length and 0.875-inch back-of-bar to cutting edge dimension compatible with common turret and tool-post configurations. Coolant-through capability is not included in this model.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand cutting direction for right-to-left turning passes\u003c\/li\u003e\n  \u003cli\u003eNegative rake geometry (-5.44 degree rake angle) supports heavier depths of cut\u003c\/li\u003e\n  \u003cli\u003eClamp and pin insert retention for positive, repeatable insert seating\u003c\/li\u003e\n  \u003cli\u003eAccepts WN..33. inserts with a 3\/8-inch (0.3750 inch) inscribed circle\u003c\/li\u003e\n  \u003cli\u003eSteel toolholder body for rigidity and durability in production turning\u003c\/li\u003e\n  \u003cli\u003eCompatible with ISO material groups H, K, M, N, P, and S for universal turning use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eAccepts WN..33. series indexable inserts with a compatible insert size code of WN33 and a 3\/8-inch inscribed circle. Designed as an OEM-style MWLN left-hand turning toolholder for use in standard square-shank tool blocks and turret stations on CNC and manual lathes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before seating or removing the toolholder from the turret or tool post. Ensure the shank bore or pocket is clean and free of chips before clamping. Follow the machine manufacturer's recommended clamping torque for toolholder retention hardware and verify insert seating before resuming cutting operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: MWLN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: -5.44 degrees \/ -6 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: WN..33.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Insert Size Code\u003c\/strong\u003e: WN33\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Width\u003c\/strong\u003e: 5\/8 inches (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Height\u003c\/strong\u003e: 5\/8 inches (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.2000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 7\/8 inches (0.8750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Multiple Lock\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Tool Application\u003c\/strong\u003e: Turning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Universal (H, K, M, N, P, S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-use Tool\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToolholder Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 75056400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562411131186,"sku":"75056400","price":162.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8e6b39bf7ac04c3bf5820b1c01dbc1dc.jpg?v=1786476541","url":"https:\/\/voomisupply.com\/products\/seco-75056400-lh-mwln-indexable-turning-toolholder","provider":"Voomi Supply","version":"1.0","type":"link"}