{"product_id":"kennametal-2249706-er16-collet-chuck-cat50-taper-shank","title":"Kennametal 2249706 ER16 Collet Chuck CAT50 Taper Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 2249706 is an ER16 collet chuck designed for CNC machining centers requiring precise tool holding with through-coolant capability. It accepts ER16-series collets with a clamping range of 0.51 mm to 10 mm (0.020 to 0.394 inches), making it suitable for a wide range of small-diameter cutting tools. The chuck mounts on a CAT50 taper shank, projects 2.5 inches from the gauge line, and carries an overall length of 6.5 inches. Balanced to 12,000 RPM, it supports high-speed machining applications where runout and vibration control are critical. Through-spindle and DIN flange coolant delivery routes cutting fluid directly to the tool tip. Installation requires a wrench-type actuator for collet nut engagement.\u003c\/p\u003e\u003cp\u003eThis collet chuck is used in production and job-shop machining environments wherever CAT50-spindle vertical or horizontal machining centers are in service. Typical applications include drilling, reaming, tapping, and end milling operations with tooling up to 10 mm in diameter. The 2.5-inch projection accommodates moderate workpiece clearance requirements without excessive overhang. The through-coolant design is particularly suited to deep-hole drilling and high-speed finishing passes where flood coolant alone is insufficient.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eER16 collet system with 0.51 mm to 10 mm clamping range\u003c\/li\u003e\n\u003cli\u003eCAT50 taper shank for direct mounting on CAT50 spindle machines\u003c\/li\u003e\n\u003cli\u003e2.5-inch projection from gauge line for workpiece clearance\u003c\/li\u003e\n\u003cli\u003eThrough-spindle and DIN flange coolant delivery to tool tip\u003c\/li\u003e\n\u003cli\u003eBalanced to 12,000 RPM for stable high-speed operation\u003c\/li\u003e\n\u003cli\u003eWrench-actuated collet nut for consistent clamping torque\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with ER16-series collets on CAT50-spindle machining centers. Collet nut inside diameter is 27.99 mm (1.259 inches); nose diameter is 1.100 inches.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and removal should be performed by a qualified machinist or CNC toolroom technician. Power down and lock out the spindle before changing tooling, following applicable machine-specific lockout\/tagout procedures. Use the correct ER16 collet nut wrench and spanner to achieve proper clamping without over-torquing the nut. Verify coolant port connections are clear and sealed before resuming through-coolant 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: ER16\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: 0.51 mm (0.020 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Collet Capacity\u003c\/strong\u003e: 10 mm (0.394 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 1.100 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollet Nut Diameter\u003c\/strong\u003e: 27.99 mm (1.259 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\u003eActuator Type\u003c\/strong\u003e: Wrench\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced To\u003c\/strong\u003e: 12,000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.826 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2249706\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51750513606962,"sku":"2249706","price":331.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aecf957d1e765b009306c007eb29be28.jpg?v=1788916048","url":"https:\/\/voomisupply.com\/products\/kennametal-2249706-er16-collet-chuck-cat50-taper-shank","provider":"Voomi Supply","version":"1.0","type":"link"}