{"product_id":"value-collection-210-0407-shell-mill-holder-set-r8-5pc","title":"Value Collection 210-0407 Shell Mill Holder Set R8 5pc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 210-0407 is a five-piece shell mill holder set designed for milling machine spindles with an R8 taper. Each holder accepts shell mills through a 1-inch pilot hole, providing a secure, concentric connection between the cutter and the spindle. This set is used in vertical milling operations on knee mills and similar R8-spindle machines common in job shops, tool rooms, and maintenance departments. Machinists and tool room technicians rely on this type of holder set to accommodate multiple shell mill sizes from a single purchase, reducing changeover time when switching cutter diameters.\u003c\/p\u003e\n\u003cp\u003eThis set is suited for vertical knee mills equipped with an R8 spindle taper, which is the standard found on a wide range of Bridgeport-style and import knee mills used in production and prototype machining environments. The 1-inch pilot hole diameter is a common shell mill bore size, making these holders compatible with a broad range of indexable and high-speed steel shell mills. The five-holder configuration supports multiple cutter setups simultaneously, useful in shops running varied facing, slotting, and profiling operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eR8 taper shank fits standard vertical knee mill spindles\u003c\/li\u003e\n  \u003cli\u003e1-inch pilot hole diameter accommodates common shell mill bore sizes\u003c\/li\u003e\n  \u003cli\u003eFive holders included for multi-cutter setups without repeated changeovers\u003c\/li\u003e\n  \u003cli\u003eSet format provides consistent holder geometry across multiple cutters\u003c\/li\u003e\n  \u003cli\u003eApproximate set weight of 10.45 pounds indicates substantial steel construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit shell mill holder set for vertical milling machines with an R8 spindle taper and shell mills bored to a 1-inch pilot diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eShell mill holders are installed and removed by a licensed machinist or qualified tool room technician. Power down and lock out the milling machine before changing holders or cutters. Use the appropriate drawbar and wrench for the R8 taper to ensure the holder is properly seated and secured in the spindle. Do not overtighten the shell mill retention screw beyond snug-firm; refer to the cutter manufacturer guidelines for retention hardware torque.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTaper Size\u003c\/strong\u003e: R8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Holders\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Hole Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSet Weight\u003c\/strong\u003e: 10.45 pounds\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 210-0407\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714144665906,"sku":"210-0407","price":311.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ba81fbd8f605901b3ce9bf4ac3ac1488.jpg?v=1788496840","url":"https:\/\/voomisupply.com\/products\/value-collection-210-0407-shell-mill-holder-set-r8-5pc","provider":"Voomi Supply","version":"1.0","type":"link"}