{"product_id":"value-collection-210-3072-end-mill-holder-nmtb30","title":"Value Collection 210-3072 End Mill Holder NMTB30","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 210-3072 is an end mill holder designed for use on milling machines equipped with an NMTB30 taper spindle. It accepts end mills and cutting tools with a 7\/8 inch bore and features a 4 inch projection from the spindle face to the tool nose. The nose diameter measures 1-7\/8 inches. Total indicator runout (TIR) is rated at 0.0004 inch, providing the concentricity required for accurate milling operations. The drawbar thread size is 1\/2-13. This holder is installed by machinists and toolroom technicians as part of a standard tool setup on manual or CNC knee mills and similar NMTB30-spindle machines.\u003c\/p\u003e\u003cp\u003eThis end mill holder is suited for general-purpose milling applications in job shops, toolrooms, and production environments. It is used wherever an NMTB30 spindle taper is the machine interface standard. The 4 inch projection accommodates setups where clearance between the spindle nose and the workpiece or fixture is needed. No through-coolant is provided, making it appropriate for dry or flood-coolant setups where coolant is delivered externally rather than through the tool.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNMTB30 taper shank for direct mounting in NMTB30 spindle machines\u003c\/li\u003e\n\u003cli\u003e7\/8 inch bore accommodates standard end mills and cutting tools of that shank diameter\u003c\/li\u003e\n\u003cli\u003e4 inch projection provides clearance for workpiece and fixture setups\u003c\/li\u003e\n\u003cli\u003eTIR of 0.0004 inch supports accurate, repeatable cutting performance\u003c\/li\u003e\n\u003cli\u003e1\/2-13 drawbar thread for secure spindle retention\u003c\/li\u003e\n\u003cli\u003e1-7\/8 inch nose diameter for standard collet or set-screw retention configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-mount end mill holder for milling machines with an NMTB30 taper spindle interface and a 1\/2-13 drawbar thread.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or toolroom technician. Before mounting or removing the holder, ensure the machine spindle is fully stopped and the machine is in a safe, locked-out state per facility lockout\/tagout procedures. Clean the spindle taper and holder taper thoroughly before seating to ensure full contact and accurate runout. Verify drawbar engagement and torque per the machine manufacturer's specification before beginning any cutting operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\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: NMTB30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 7\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNose Diameter\u003c\/strong\u003e: 1-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0004 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrawbar Thread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.18 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: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 210-3072\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51697348084018,"sku":"210-3072","price":109.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/410e3182144818d2f17bd956a3174165.jpg?v=1788351136","url":"https:\/\/voomisupply.com\/products\/value-collection-210-3072-end-mill-holder-nmtb30","provider":"Voomi Supply","version":"1.0","type":"link"}