{"product_id":"hertel-1000203-lh-mwln-indexable-turning-toolholder","title":"Hertel 1000203 Lh Mwln Indexable Turning Toolholder","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 1000203 is a left-hand MWLN-style indexable turning toolholder designed for negative-rake external turning operations on CNC lathes and manual turning centers. It features a 1 inch by 1 inch square shank and an overall length of 5 inches, making it a standard fit for most 1-inch boring bar pockets and toolpost holders. The holder uses a clamp-and-screw insert retention method and accepts WN..43. series inserts with a 0.5 inch inscribed circle. Constructed from steel, it delivers the rigidity needed for interrupted cuts and heavy stock removal. Licensed machinists and CNC operators install this holder in production turning environments where consistent insert indexing and negative-rake geometry are required.\u003c\/p\u003e\n\u003cp\u003eThis toolholder is suited for external turning, facing, and profiling applications where a left-hand cutting direction is required. The MWLN style provides a 5-degree lead angle that directs cutting forces toward the workpiece centerline, reducing chatter on long overhangs. It is commonly used in job shops and production facilities running steel, cast iron, and similar ferrous materials. The 1.25 inch back-of-bar to cutting-edge dimension and 1.13 inch head length are consistent with standard MWLN geometry used in both manual and CNC lathe setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand MWLN toolholder style with 5-degree negative rake angle\u003c\/li\u003e\n  \u003cli\u003eAccepts WN..43. series inserts with a 0.5 inch inscribed circle\u003c\/li\u003e\n  \u003cli\u003eClamp and screw insert retention for secure holding under heavy cuts\u003c\/li\u003e\n  \u003cli\u003e1 inch by 1 inch square shank fits standard 1-inch toolpost and turret pockets\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides rigidity for ferrous and interrupted-cut turning\u003c\/li\u003e\n  \u003cli\u003eOverall length of 5 inches with a 1.13 inch head length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to accept WN..43. series indexable inserts (complete compatibility: WN.. 432) with a 0.5 inch inscribed circle. Fits standard 1-inch square shank toolpost and turret positions on CNC and manual turning centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Power down and lock out the lathe spindle before seating or removing the toolholder from the turret or toolpost. Verify insert seating and clamp screw torque per the insert manufacturer's specification before taking a cut. Inspect the insert pocket and clamp components for wear or chips each time the insert is indexed.\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\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: -5 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Width\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Height\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.13 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: WN..43.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Retention Method\u003c\/strong\u003e: Clamp and Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToolholder Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Multi-Option\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.5 pounds\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1000203\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51728881844530,"sku":"1000203","price":235.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66181d6360bac94c1d3e46522e824670.jpg?v=1788697330","url":"https:\/\/voomisupply.com\/products\/hertel-1000203-lh-mwln-indexable-turning-toolholder","provider":"Voomi Supply","version":"1.0","type":"link"}