{"product_id":"accupro-775110-cat50-end-mill-holder-1-2-in-bore-through-coolant","title":"Accupro 775110 CAT50 End Mill Holder 1\/2 in Bore Through Coolant","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 775110 is a CAT50 taper shank end mill holder designed for high-performance milling applications in CNC machining centers. It accepts a 1\/2 inch bore and delivers a 6 inch projection, making it well suited for extended-reach cutting operations where clearance from the spindle face is required. The holder features through-coolant capability, supporting both through-spindle and DIN flange coolant delivery to direct fluid precisely at the cutting zone. Balanced to 25,000 RPM, it maintains tool stability at elevated spindle speeds. A total indicator runout (TIR) of 0.0002 inch ensures concentricity critical for finish milling and tight-tolerance work.\u003c\/p\u003e\n\u003cp\u003eThis end mill holder is intended for use in production and job-shop CNC machining environments running CAT50-spindle vertical or horizontal machining centers. The 6 inch projection suits deep-cavity milling, mold work, and applications where standard-length holders lack reach. It is installed by machinists and CNC tooling technicians as part of a tool assembly prior to loading into the spindle. The 1-8 drawbar thread size is standard for CAT50 tooling systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCAT50 taper shank for direct mounting in CAT50 spindle tooling systems\u003c\/li\u003e\n  \u003cli\u003e1\/2 inch bore accommodates standard end mill shank diameter\u003c\/li\u003e\n  \u003cli\u003e6 inch projection for extended reach in deep-cavity and mold milling\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant compatible via through-spindle and DIN flange delivery\u003c\/li\u003e\n  \u003cli\u003eBalanced to 25,000 RPM for stable high-speed operation\u003c\/li\u003e\n  \u003cli\u003eTIR of 0.0002 inch for precise tool concentricity and surface finish quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard tooling solution for CNC machining centers equipped with CAT50 taper spindles and a 1-8 drawbar thread.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machining center spindle before assembling or removing toolholders. Use a torque wrench and the appropriate CAT50 retention knob to secure the drawbar connection per machine manufacturer specifications. Inspect bore and taper surfaces for contamination or damage before assembly to protect TIR performance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: CAT50 Taper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 35.00 mm\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 and DIN Flange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBalanced To\u003c\/strong\u003e: 25,000 RPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrawbar Thread Size\u003c\/strong\u003e: 1-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 775110\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":67650040430898,"sku":"775110","price":173.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e62345c12d90962cf28a3059181ed7cb.jpg?v=1790461484","url":"https:\/\/voomisupply.com\/products\/accupro-775110-cat50-end-mill-holder-1-2-in-bore-through-coolant","provider":"Voomi Supply","version":"1.0","type":"link"}