{"product_id":"accupro-775001-cat40-end-mill-holder-1-8-in-through-coolant","title":"Accupro 775001 CAT40 End Mill Holder 1\/8 in Through Coolant","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 775001 is a CAT40 taper shank end mill holder designed for CNC machining centers requiring precise tool holding with integrated coolant delivery. The holder accepts a 1\/8 inch tool bore and features a 3\/4 inch nose diameter with a 2.5 inch projection length. A total indicator runout (TIR) of 0.0002 inch ensures accurate tool positioning at high speeds. The holder is balanced to 30,000 RPM, making it suitable for high-speed cutting operations. Machining professionals and CNC setup technicians install this holder when secure, high-precision end mill clamping with through-coolant capability is required.\u003c\/p\u003e\u003cp\u003eThis holder is suited for use in CNC vertical and horizontal machining centers equipped with CAT40 spindle interfaces. The 2.5 inch projection provides clearance for a range of end mill lengths in typical milling fixtures and vise setups. The through-spindle and DIN flange coolant delivery supports both flood and directed coolant strategies, reducing heat at the cutting edge and extending tool life in ferrous and non-ferrous applications. The 5\/8-11 drawbar thread matches standard CAT40 tooling infrastructure found in most production and job-shop environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCAT40 taper shank for compatibility with standard CAT40 spindle interfaces\u003c\/li\u003e\n\u003cli\u003e1\/8 inch bore diameter for small-diameter end mill applications\u003c\/li\u003e\n\u003cli\u003e2.5 inch projection length for adequate reach in typical milling setups\u003c\/li\u003e\n\u003cli\u003eTIR of 0.0002 inch for high-precision tool positioning\u003c\/li\u003e\n\u003cli\u003eBalanced to 30,000 RPM for high-speed machining operations\u003c\/li\u003e\n\u003cli\u003eThrough-spindle and DIN flange coolant delivery for effective heat management\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling component for CNC machining centers with CAT40 spindle interfaces and a 5\/8-11 drawbar thread configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and removal should be performed by a qualified CNC machinist or toolroom technician with the spindle fully powered down and locked out per facility lockout\/tagout procedures. Use a torque wrench rated for standard CAT40 drawbar requirements and follow the machine tool manufacturer guidelines for drawbar engagement. Verify TIR with a dial indicator after seating to confirm proper runout before initiating a cutting cycle. Inspect the taper shank and spindle bore for contamination or damage before every tool change.\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\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 2.5 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 inch\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: 775001\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748808851762,"sku":"775001","price":99.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2685bd87c7d8b607667a690b83d02293.jpg?v=1788898747","url":"https:\/\/voomisupply.com\/products\/accupro-775001-cat40-end-mill-holder-1-8-in-through-coolant","provider":"Voomi Supply","version":"1.0","type":"link"}