{"product_id":"accupro-775064-cat40-end-mill-holder-1-1-4-in-through-coolant","title":"Accupro 775064 CAT40 End Mill Holder 1-1\/4 in Through Coolant","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 775064 is a CAT40 taper shank end mill holder designed for use in CNC machining centers requiring a secure, high-precision tool interface. It accepts a 1-1\/4 inch bore and provides 6 inches of projection from the spindle face, making it suitable for operations that need extended reach without sacrificing rigidity. The holder supports through-coolant delivery via both through-spindle and DIN flange configurations, and carries a TIR of 0.0002 inches for reliable concentricity at speed. Balanced to 30,000 RPM, this holder is appropriate for high-speed finishing and general milling applications in production environments. Installation requires a standard 5\/8-11 drawbar thread engagement.\u003c\/p\u003e\u003cp\u003eThis end mill holder is intended for use in CNC vertical and horizontal machining centers equipped with CAT40 spindle interfaces. The 6-inch projection suits applications where workpiece geometry, fixtures, or part features demand clearance between the spindle nose and the cutting zone. Through-coolant capability makes it well suited for harder materials or deep-cavity work where flood coolant is insufficient. The 63.00 mm nose diameter is consistent with standard CAT40 holder sizing for this bore range. Machinists and CNC setup technicians in job shops, production facilities, and toolrooms are the primary installers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCAT40 taper shank for direct spindle engagement on compatible machining centers\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inch bore diameter accommodates standard end mill shanks of that size\u003c\/li\u003e\n\u003cli\u003e6-inch projection provides extended reach for complex workpiece geometries\u003c\/li\u003e\n\u003cli\u003eThrough-coolant compatible via through-spindle and DIN flange coolant delivery\u003c\/li\u003e\n\u003cli\u003eTIR of 0.0002 inches supports consistent concentricity at elevated spindle speeds\u003c\/li\u003e\n\u003cli\u003eBalanced to 30,000 RPM for high-speed milling applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for CAT40 spindle machining centers accepting a 5\/8-11 drawbar thread and using 1-1\/4 inch shank end mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machining center spindle before inserting or removing the holder. Engage the drawbar to the 5\/8-11 thread using the machine manufacturer recommended torquing procedure and tooling. Confirm TIR with a dial test indicator after seating to verify proper holder and spindle contact before resuming 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: CAT40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 63.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 6 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 and DIN Flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrawbar Thread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced To\u003c\/strong\u003e: 30,000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 775064\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51732122468658,"sku":"775064","price":165.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de08e87ac505b97d49ef69c4459b2a74.jpg?v=1788739437","url":"https:\/\/voomisupply.com\/products\/accupro-775064-cat40-end-mill-holder-1-1-4-in-through-coolant","provider":"Voomi Supply","version":"1.0","type":"link"}