{"product_id":"sandvik-coromant-5721216-boring-bar-holder-cat50","title":"Sandvik Coromant 5721216 Boring Bar Holder CAT50","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5721216 is a CAT50 boring bar holder designed for precision machining applications in CNC milling and boring operations. It accepts a 3\/4 inch bore diameter and provides a bore depth of 3-3\/4 inches (95.25 mm), making it suitable for deep-reach internal machining work. The body measures 29.20 mm in diameter with a body length of 3.75 inches. Internal coolant delivery directs fluid directly to the cutting zone, improving chip evacuation and extending tool life. This holder is installed and serviced by skilled machinists and tooling technicians in machine shop environments.\u003c\/p\u003e\n\u003cp\u003eThis boring bar holder fits CAT50 spindle interfaces commonly found on full-size vertical and horizontal machining centers used in production and job-shop settings. The internal coolant feature makes it well suited for deep-bore applications where flood coolant cannot adequately reach the cutting edge. The no-head body style keeps the profile compact for clearance-critical setups. Compatible lock screws include part numbers 5514 022-08, and the coolant screw compatibility is listed as 3214 010-355. The manufacturer part number on the holder body is AA3B20-50 19 095.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCAT50 shank connection for use on full-size machining center spindles\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch bore diameter accommodates standard boring bar shanks\u003c\/li\u003e\n  \u003cli\u003e3-3\/4 inch (95.25 mm) bore depth for extended reach boring setups\u003c\/li\u003e\n  \u003cli\u003eInternal coolant delivery directs fluid to the cutting zone for improved chip evacuation\u003c\/li\u003e\n  \u003cli\u003e29.20 mm body diameter provides a compact profile for tight clearance applications\u003c\/li\u003e\n  \u003cli\u003eNo-head body style reduces interference in confined workpiece geometries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible lock screws: 5514 022-08. Coolant screw compatibility: 3214 010-355. Body marked with manufacturer part number AA3B20-50 19 095. Designed for CAT50 spindle interfaces on CNC machining centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before mounting or removing the holder. Ensure mating CAT50 taper surfaces are clean and free of chips or burrs before seating the holder. Use only the specified lock screw sizes listed by the manufacturer to secure boring bars, and verify coolant port alignment before returning the machine to operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Depth\u003c\/strong\u003e: 3-3\/4 inches (95.25 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 29.20 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 3.75 inches (95.25 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: CAT50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Style\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Style\u003c\/strong\u003e: No Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Screw Size\u003c\/strong\u003e: 3.89 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Screw Compatibility\u003c\/strong\u003e: 5514 022-08\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Screw Compatibility\u003c\/strong\u003e: 3214 010-355\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 7.95 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5721216\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51734763471154,"sku":"5721216","price":285.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/57f349b7c43a4bb3220e198ecb3daba5_d0a3b689-9eef-457e-83f7-bdb741f32ca8.jpg?v=1788766761","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5721216-boring-bar-holder-cat50","provider":"Voomi Supply","version":"1.0","type":"link"}