{"product_id":"value-collection-220-1210-boring-head-2-inch-manual","title":"Value Collection 220-1210 Boring Head 2 Inch Manual","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 220-1210 is a manual offset boring head designed for precision single-point boring operations on milling machines and machining centers. With a 2-inch body diameter and a 7\/8-20 threaded mount, this Series F1 head accepts a 1\/2-inch boring bar and delivers a direct reading graduation of 0.001 inches for repeatable diameter adjustments. The offset head design allows the operator to dial in bore diameter without removing the toolholder from the spindle. It is installed and operated by machinists and toolroom technicians in job shop and production environments.\u003c\/p\u003e\n\u003cp\u003eThis boring head covers a minimum bore diameter of 0.375 inches and a maximum bore diameter of 5 inches, making it suitable for a wide range of through-hole and blind-hole applications in ferrous and non-ferrous materials. Typical use cases include line boring, finish boring, and interpolated bore sizing on vertical and horizontal mills. The threaded 7\/8-20 mount is compatible with standard boring bar arbors and milling machine spindle adapters that accept this thread specification.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eOffset head type allows radial tool adjustment without spindle removal\u003c\/li\u003e\n  \u003cli\u003eManual actuation with 0.001-inch direct reading graduation for precise diameter control\u003c\/li\u003e\n  \u003cli\u003eBoring bar hole diameter of 1\/2 inch accommodates standard boring bars\u003c\/li\u003e\n  \u003cli\u003eBore range from 0.375 inches minimum to 5 inches maximum\u003c\/li\u003e\n  \u003cli\u003e7\/8-20 threaded mount for secure spindle attachment\u003c\/li\u003e\n  \u003cli\u003eSeries F1 designation for use with compatible F1-series arbors and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with milling machines and machining centers equipped with a 7\/8-20 threaded spindle arbor; accepts 1\/2-inch boring bars in the Series F1 system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and adjustment should be performed by a qualified machinist. Ensure the machine spindle is powered off and brought to a full stop before mounting or adjusting the boring head. Thread the head onto the arbor to the manufacturer-specified engagement depth and verify runout with a dial indicator before cutting. Use appropriate torque on the boring bar setscrew to prevent tool pullout under cutting loads.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoring Bar Hole Diameter\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.375 inches (10.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Bore Diameter\u003c\/strong\u003e: 5 inches (125.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Offset\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuation Type\u003c\/strong\u003e: Manual\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Reading Graduation\u003c\/strong\u003e: 0.001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: F1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.56 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: 220-1210\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695214395698,"sku":"220-1210","price":137.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ef916053531fd1c411e8957db89442ea.jpg?v=1788332658","url":"https:\/\/voomisupply.com\/products\/value-collection-220-1210-boring-head-2-inch-manual","provider":"Voomi Supply","version":"1.0","type":"link"}