{"product_id":"accupro-12630101403-boring-head-4-in-manual-threaded","title":"Accupro 12630101403 Boring Head 4 in Manual Threaded","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12630101403 is a manually actuated offset boring head designed for precision boring operations on milling machines and machining centers. With a 4-inch body diameter and a 1-inch boring bar hole diameter, this head accommodates standard boring bars for a wide range of bore sizes. The threaded mount style uses a 1-1\/2-18 thread interface for secure spindle attachment. At 3-1\/2 inches overall length and 4.5 pounds, it delivers the mass and rigidity needed for stable, chatter-free cuts. Machinists and toolroom professionals use this type of head for finish boring, line boring, and back boring on ferrous and non-ferrous materials.\u003c\/p\u003e\n\u003cp\u003eThis boring head is suited for job shop, toolroom, and production environments where manual fine-feed adjustment is required. The offset head design allows the operator to dial in the boring radius precisely by shifting the boring bar radially within the body. Compatible with any spindle or arbor that accepts a 1-1\/2-18 threaded connection, it integrates into standard vertical or horizontal milling setups. The 1-inch bar hole accepts commonly available boring bar shanks for flexible tooling selection across a variety of bore diameters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eOffset head type allows radial adjustment of the boring bar for precise diameter control\u003c\/li\u003e\n  \u003cli\u003eManual actuation for direct operator control during setup and fine adjustment\u003c\/li\u003e\n  \u003cli\u003e4-inch body diameter provides a stable platform and wide adjustment range\u003c\/li\u003e\n  \u003cli\u003e1-inch boring bar hole accepts standard boring bar shanks\u003c\/li\u003e\n  \u003cli\u003e1-1\/2-18 threaded mount for secure, repeatable spindle connection\u003c\/li\u003e\n  \u003cli\u003eCompact 3-1\/2-inch overall length reduces spindle-to-work distance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with spindles and arbors equipped with a 1-1\/2-18 threaded interface and accepts boring bars with a 1-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine powered down and the spindle fully stopped. Verify the threaded spindle interface is clean and undamaged before mounting to ensure proper seating and runout control. Use appropriate torque and anti-seize practices per shop standards when threading the head onto the arbor. Confirm boring bar set-screw engagement and head adjustment lock engagement before starting the cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\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\u003eBody Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoring Bar Hole Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/2 inches\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: 1-1\/2-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.5 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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12630101403\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51733129527602,"sku":"12630101403","price":1117.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ddf196a8c05feef0d0c6d96d1d3d4287.jpg?v=1788751625","url":"https:\/\/voomisupply.com\/products\/accupro-12630101403-boring-head-4-in-manual-threaded","provider":"Voomi Supply","version":"1.0","type":"link"}