{"product_id":"accupro-775706-er40-collet-chuck-cat50-taper-shank","title":"Accupro 775706 ER40 Collet Chuck CAT50 Taper Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 775706 is an ER40 collet chuck with a CAT50 taper shank, designed for high-precision machining operations on CNC machining centers. It accepts ER40 collets with a clamping range of 0.118 to 1.181 inches and delivers a true indicator reading (TIR) of 0.0002 inches, making it suitable for tight-tolerance work. The chuck is balanced to 25,000 RPM, supporting high-speed cutting applications. Through-coolant capability, including through-spindle and DIN flange coolant delivery, allows for efficient chip evacuation and tool cooling during demanding cuts. Machinists and CNC setup technicians install this chuck as a standard toolholding solution on CAT50-spindle machines.\u003c\/p\u003e\n\u003cp\u003eThis collet chuck is intended for use on CNC machining centers equipped with CAT50 spindle interfaces. The 6-inch projection provides clearance for deep-cavity work and fixturing situations where additional reach is required. The ER40 collet system is widely used in production and job-shop environments for milling, drilling, reaming, and tapping operations where runout control and spindle speed are critical factors.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eER40 collet system accepts tooling from 0.118 to 1.181 inches in diameter\u003c\/li\u003e\n  \u003cli\u003eCAT50 taper shank for direct mounting to CAT50 CNC spindles\u003c\/li\u003e\n  \u003cli\u003eTIR of 0.0002 inches for high-precision, low-runout toolholding\u003c\/li\u003e\n  \u003cli\u003eBalanced to 25,000 RPM for high-speed machining applications\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant compatible via through-spindle and DIN flange coolant delivery\u003c\/li\u003e\n  \u003cli\u003e6-inch projection for extended reach in deep-cavity or complex fixturing setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for CNC machining centers with CAT50 spindle interfaces using the ER40 collet system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC toolroom technician. The machine spindle must be powered down and brought to a full stop before mounting or removing the chuck. Use a calibrated torque wrench and the appropriate ER40 collet nut spanner to seat the collet nut properly — do not use impact tools on the collet nut. Verify TIR with a dial indicator after installation before beginning any cutting operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: CAT50\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: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 25,000 RPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBalanced To RPM\u003c\/strong\u003e: 25,000 RPM\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\u003eCollet Nut Diameter\u003c\/strong\u003e: 2.48 inches\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: 775706\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51730514018610,"sku":"775706","price":237.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4abbff484bdab366a2a817061584f100.jpg?v=1788718773","url":"https:\/\/voomisupply.com\/products\/accupro-775706-er40-collet-chuck-cat50-taper-shank","provider":"Voomi Supply","version":"1.0","type":"link"}