{"product_id":"accupro-775658-er32-cat40-collet-chuck-through-coolant","title":"Accupro 775658 ER32 CAT40 Collet Chuck Through Coolant","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 775658 is an ER32 collet chuck with a CAT40 taper shank, designed for precision CNC milling and machining center applications. It accepts ER32 collets across a capacity range of 0.078 to 0.787 inches and delivers a total indicator runout (TIR) of 0.0002 inches, making it suitable for close-tolerance work. The chuck features through-spindle and DIN flange coolant delivery, supporting both flood and directed coolant strategies. With a projection of 3.13 inches and a collet nut diameter of 1.97 inches, it provides clearance and rigidity for a wide range of tooling setups. Balanced to 30,000 RPM, it is appropriate for high-speed machining operations. Installation and setup are typically performed by CNC machinists and toolroom technicians.\u003c\/p\u003e\u003cp\u003eThis collet chuck is used in CNC machining centers requiring CAT40 spindle tooling. It is well suited for high-speed milling, drilling, reaming, and tapping operations where runout control is critical. The ER32 collet system is widely used in production and job-shop environments for its broad clamping range and availability of collets. Through-coolant capability makes it practical for deep-hole drilling and high-speed finishing passes where chip evacuation and tool cooling are important.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eER32 collet system with 0.078 to 0.787 inches clamping capacity\u003c\/li\u003e\n\u003cli\u003eCAT40 taper shank for standard CNC machining center spindles\u003c\/li\u003e\n\u003cli\u003e0.0002 inches TIR for high-precision toolholding\u003c\/li\u003e\n\u003cli\u003eThrough-spindle and DIN flange coolant delivery\u003c\/li\u003e\n\u003cli\u003eBalanced to 30,000 RPM for high-speed machining compatibility\u003c\/li\u003e\n\u003cli\u003e3.13 inches projection and 1.97 inches collet nut diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for CNC machining centers equipped with CAT40 spindle interfaces using the ER32 collet system.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before mounting or removing the chuck. Use a calibrated torque wrench with the appropriate ER32 collet nut spanner to achieve proper collet seating without overtightening. Verify runout with a dial test indicator after setup before committing to a production run.\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: ER32\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: 0.078 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Collet Capacity\u003c\/strong\u003e: 0.787 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 3.13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Nut Diameter\u003c\/strong\u003e: 1.97 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\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: 775658\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51736933695794,"sku":"775658","price":201.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d308e1a5798dd62c053e36b1e532409b.jpg?v=1788782096","url":"https:\/\/voomisupply.com\/products\/accupro-775658-er32-cat40-collet-chuck-through-coolant","provider":"Voomi Supply","version":"1.0","type":"link"}