{"product_id":"accupro-775670-er40-collet-chuck-cat40-taper-shank","title":"Accupro 775670 ER40 Collet Chuck CAT40 Taper Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 775670 is an ER40 collet chuck with a CAT40 taper shank, designed for CNC machining centers and milling applications where precision tool holding is critical. It accepts ER40 collets with a capacity range of 0.118 to 1.181 inches and delivers a total indicator runout (TIR) of 0.0002 inches, making it suitable for finishing, drilling, and reaming operations that demand tight tolerances. A 4-inch projection provides clearance for deep-reach setups. Through-coolant capability supports both through-spindle and DIN flange coolant delivery, helping to clear chips and manage heat at the cutting edge.\u003c\/p\u003e\u003cp\u003eThis collet chuck is intended for use in production and job-shop environments running CAT40-spindle machining centers. It is balanced to 30,000 RPM, making it compatible with high-speed spindle applications. Licensed machinists and CNC operators install this chuck as a standard toolholder for end mills, drills, reamers, and taps held in ER40 collets. The 4-inch projection suits setups where fixture height or workpiece geometry requires additional spindle-to-tool distance.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eER40 collet system with 0.118 to 1.181 inch clamping range\u003c\/li\u003e\n\u003cli\u003eCAT40 taper shank for direct mount to CAT40 spindles\u003c\/li\u003e\n\u003cli\u003e0.0002 inch TIR for high-precision tool holding\u003c\/li\u003e\n\u003cli\u003e4-inch projection for deep-reach and clearance applications\u003c\/li\u003e\n\u003cli\u003eThrough-coolant compatible via through-spindle and DIN flange delivery\u003c\/li\u003e\n\u003cli\u003eBalanced to 30,000 RPM for high-speed machining\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CAT40-spindle machining centers and compatible with the ER40 collet series. Accepts standard ER40 collets with a collet nut diameter of 2.48 inches.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom personnel. Power down and lock out the machine spindle before installing or removing the toolholder. Use a properly sized CAT40 retention knob and a calibrated torque wrench on the drawbar to ensure secure seating in the spindle taper. Verify TIR with a dial indicator after installation before beginning any cutting operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet System\u003c\/strong\u003e: ER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER40\u003c\/li\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\u003eMinimum Collet Capacity\u003c\/strong\u003e: 0.118 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Collet Capacity\u003c\/strong\u003e: 1.181 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Nut Diameter\u003c\/strong\u003e: 2.48 inches\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\u003eBalanced To RPM\u003c\/strong\u003e: 30,000\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: 775670\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51730674811186,"sku":"775670","price":179.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/982033fae4407ca48299bfcfbc59dcec.jpg?v=1788721276","url":"https:\/\/voomisupply.com\/products\/accupro-775670-er40-collet-chuck-cat40-taper-shank","provider":"Voomi Supply","version":"1.0","type":"link"}