{"product_id":"sandvik-coromant-5757845-threading-toolholder-1-2-inch","title":"Sandvik Coromant 5757845 Threading Toolholder 1\/2 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5757845 is an indexable threading toolholder designed for external thread-cutting operations on CNC lathes and turning centers. Built to the CoroThread 266 series standard, this right-hand toolholder accepts 266RG to 16 inserts secured by a screw-clamp holding method for reliable repeatability under cutting loads. The shank measures 0.5 inches wide by 0.5 inches tall with an overall length of 5 inches. The steel construction handles the rigidity demands of precision threading applications. Machinists and tool-and-die professionals working with external threading operations will find this holder sized and configured for direct integration into standard turning tool blocks.\u003c\/p\u003e\u003cp\u003eThis toolholder is suited for external threading on residentially scaled and industrial CNC turning equipment where a 1\/2 x 1\/2 inch shank is the required interface. The CoroThread 266 series is a common platform in job shops and production environments where consistent thread form and quick insert indexing are priorities. The 3\/8 inch inscribed circle insert size is appropriate for moderate-to-fine pitch threading across a range of workpiece materials. No coolant-through capability is present in this holder, so external coolant delivery should be used when thermal management is needed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExternal thread-cutting configuration with right-hand orientation\u003c\/li\u003e\n\u003cli\u003eCoroThread 266 series platform accepts 266RG to 16 inserts\u003c\/li\u003e\n\u003cli\u003eScrew-clamp insert holding method for secure, repeatable seating\u003c\/li\u003e\n\u003cli\u003e1\/2 x 1\/2 inch square shank fits standard turning tool blocks\u003c\/li\u003e\n\u003cli\u003e5 inch overall length with 0.5 inch center-to-cutting-edge dimension\u003c\/li\u003e\n\u003cli\u003eSteel construction provides rigidity for precision threading cuts\u003c\/li\u003e\n\u003cli\u003eNo coolant-through — compatible with external coolant delivery setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with 266RG to 16 series indexable inserts. Designed for use within the SANDVIK COROMANT CoroThread 266 tooling system on CNC lathes and turning centers accepting a 1\/2 x 1\/2 inch square shank toolholder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing the toolholder from the turret or tool block. Ensure the tool block bore and shank surfaces are clean and free of chips before clamping. Follow the machine tool manufacturer torque specifications for toolholder clamping fasteners — do not use values not confirmed by the machine or tooling documentation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: 266RFA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroThread 266\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: 266RG to 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Width\/Diameter\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Height\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.5 inches (12.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\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\u003eWeight\u003c\/strong\u003e: 0.44 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5757845\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51755200348466,"sku":"5757845","price":294.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9001095c4569a38c7854233adea49517.jpg?v=1788952099","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5757845-threading-toolholder-1-2-inch","provider":"Voomi Supply","version":"1.0","type":"link"}