{"product_id":"boneham-sf3222hg-slip-fixed-drill-bushing-steel","title":"Boneham SF3222HG Slip-fixed Drill Bushing Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SF3222HG is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to the SF industry code, it features a 0.25 inch inside diameter, a 0.5 inch body outside diameter, and a 1.375 inch length under head. The bushing is machined from steel and hardened to 60 to 65 HRC, delivering the wear resistance required for repeated drilling, reaming, or boring operations. Inside diameter tolerance is held to +0.0001 to +0.0004 inches for accurate tool guidance. A counterbored head design and LS-1 compatible lock screw allow secure, repeatable positioning within a liner bushing. This part is installed by machinists, toolmakers, and production fixture technicians.\u003c\/p\u003e\n\u003cp\u003eThe SF3222HG is suited for use in drill jigs and production fixtures where tooling must be changed frequently without disturbing the liner bushing. The slip-fixed installation method allows the bushing to be inserted and locked in place with an LS-1 lock screw, making it a practical choice for multi-operation fixtures in metal fabrication and machining environments. The renewable design means worn bushings can be replaced individually without reworking the fixture plate, reducing downtime on the shop floor.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip-fixed installation method for quick tool changes in production jig setups\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of +0.0001 to +0.0004 inches for consistent tool guidance\u003c\/li\u003e\n  \u003cli\u003eHardened steel construction at 60 to 65 HRC for extended wear life\u003c\/li\u003e\n  \u003cli\u003eCounterbored head design accepts LS-1 compatible lock screw for secure seating\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing construction allows individual replacement without fixture rework\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards for drill bushing dimensions and tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with LS-1 series lock screws and compatible liner bushings in standard ANSI SF-code drill jig applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified toolmakers or machinists working with drill jig fixtures. Before installing or replacing bushings, ensure the fixture is secured and all machine power is off. The bushing is inserted into a mating liner bushing and locked with an LS-1 lock screw — confirm screw engagement is complete before resuming drilling operations. Do not force the bushing into an undersized liner; verify liner inside diameter matches the bushing body outside diameter before assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.25 inches (Letter E)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: +0.0001 to +0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Outside Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 0.797 inches (51\/64 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Style\u003c\/strong\u003e: Head (counterbored)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 60 to 65 HRC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Slip-Fixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: SF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Screw Compatibility\u003c\/strong\u003e: LS-1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRenewable\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\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: BONEHAM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SF3222HG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51730483970354,"sku":"SF3222HG","price":27.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_0a2d1c43-159e-4a39-b57a-9fe218497ed1.jpg?v=1788718263","url":"https:\/\/voomisupply.com\/products\/boneham-sf3222hg-slip-fixed-drill-bushing-steel","provider":"Voomi Supply","version":"1.0","type":"link"}