{"product_id":"accupro-771212-shell-mill-holder-cat50-0-75-inch-pilot","title":"Accupro 771212 Shell Mill Holder CAT50 0.75 Inch Pilot","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 771212 is a CAT50 dual contact taper shank shell mill holder designed for milling operations on CNC machining centers. It features a 0.75 inch pilot diameter, a 2 inch nose diameter, and a flange-to-nose projection of 6 inches, giving it an overall length of 10 inches. Dual contact taper engagement provides simultaneous face and taper contact with the spindle, improving rigidity and runout accuracy. Runout (TIR) is rated at 0.0002 inches. This holder is installed by machinists and CNC tooling technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis shell mill holder is suited for use on CAT50-taper VMCs and HMCs running face mills, indexable shell mills, and similar large-diameter cutters. It accommodates shell mill cutting diameters ranging from 1-3\/4 inches to 2 inches. The through-spindle and DIN flange coolant delivery supports directed coolant at the cutting zone, making it appropriate for ferrous and non-ferrous material removal where coolant flow is required. The lock screw uses a 3\/8-24 thread. The holder is balanced to 10,000 RPM, making it viable for moderate to higher spindle speeds on production equipment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCAT50 dual contact taper shank for simultaneous face and taper spindle engagement\u003c\/li\u003e\n\u003cli\u003eTIR of 0.0002 inches for accurate tool positioning\u003c\/li\u003e\n\u003cli\u003eThrough-spindle and DIN flange coolant delivery\u003c\/li\u003e\n\u003cli\u003eBalanced to 10,000 RPM\u003c\/li\u003e\n\u003cli\u003eShell mill cutting diameter range: 1-3\/4 inches to 2 inches\u003c\/li\u003e\n\u003cli\u003eLock screw thread size: 3\/8-24\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CAT50-taper spindle machining centers that support dual contact taper tooling. Compatible with shell mills and face mills having a pilot bore of 0.75 inches and mounting configurations suited to the 2 inch nose diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Clean the spindle taper and holder taper thoroughly before seating to ensure full dual contact engagement. Follow the machine tool manufacturer torque specification for the retention knob and lock screw. Verify runout with a dial test indicator after mounting before initiating any cutting operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper Size\u003c\/strong\u003e: CAT50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Dual Contact Taper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange to Nose Projection\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShell Mill Cutting Diameter Range\u003c\/strong\u003e: 1-3\/4 inches to 2 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\u003eLock Screw Thread Size\u003c\/strong\u003e: 3\/8-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced To\u003c\/strong\u003e: 10,000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 12.75 inches L x 4.5 inches W x 4.5 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 9.6 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 771212\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51732873609522,"sku":"771212","price":380.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7346e249b4d6675f41ef80c2d99bcefc.jpg?v=1788747780","url":"https:\/\/voomisupply.com\/products\/accupro-771212-shell-mill-holder-cat50-0-75-inch-pilot","provider":"Voomi Supply","version":"1.0","type":"link"}