{"product_id":"kennametal-1026117-end-mill-holder-cat50-5-8-inch","title":"Kennametal 1026117 End Mill Holder CAT50 5\/8 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1026117 is a CAT50 taper shank end mill holder designed for use in CNC machining centers requiring precise tool retention and high-speed performance. The holder accepts a 5\/8 inch bore and features through-coolant capability, delivering cutting fluid directly to the tool tip for improved chip evacuation and thermal management. With a projection of 7.75 inches and a nose diameter of 1.625 inches, this holder suits deep-reach milling applications where rigidity and balance are critical. Rated to 12,000 RPM, it is built for production environments where consistent tool runout and secure clamping are non-negotiable requirements.\u003c\/p\u003e\u003cp\u003eThis end mill holder is suited for vertical and horizontal CNC machining centers equipped with CAT50 spindle interfaces. It is typically installed in shops running ferrous and non-ferrous milling operations where through-spindle coolant is available and preferred. The 1-8 drawbar thread size is standard for CAT50 tooling systems. Machinists and toolroom technicians working in aerospace, automotive, die and mold, and general metalworking applications will find this holder appropriate for demanding production and prototype work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCAT50 taper shank for compatibility with standard CAT50 spindle interfaces\u003c\/li\u003e\n\u003cli\u003e5\/8 inch bore diameter for direct end mill mounting\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design with through-spindle coolant delivery to the cutting zone\u003c\/li\u003e\n\u003cli\u003e7.75 inch projection for extended reach milling setups\u003c\/li\u003e\n\u003cli\u003eBalanced to 12,000 RPM for stable high-speed operation\u003c\/li\u003e\n\u003cli\u003e1-8 drawbar thread size matching standard CAT50 retention knob specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CNC machining centers equipped with a CAT50 spindle interface and through-spindle coolant capability. Compatible with end mills using a 5\/8 inch straight shank and a standard 1-8 drawbar retention thread.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machining center spindle before mounting or removing the holder. Use a calibrated torque wrench and the appropriate spanner wrench for the retention knob — do not exceed the drawbar torque specification listed in the machine tool manual. Verify tool runout with a dial indicator after installation before resuming cutting operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Taper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Size\u003c\/strong\u003e: CAT50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.625 inches (5\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 1.625 inches (1-5\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 7.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 11.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamping Depth\u003c\/strong\u003e: 9.94 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Type\u003c\/strong\u003e: Through-Spindle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrawbar Thread Size\u003c\/strong\u003e: 1-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced To\u003c\/strong\u003e: 12,000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 9.243 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112800\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1026117\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51747454878002,"sku":"1026117","price":305.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dfb4aa87aebc4f12ef27a705752aaaf5_f68d7b60-9ed5-4ed5-9dc5-10f1f144ae31.jpg?v=1788880478","url":"https:\/\/voomisupply.com\/products\/kennametal-1026117-end-mill-holder-cat50-5-8-inch","provider":"Voomi Supply","version":"1.0","type":"link"}