{"product_id":"boneham-sf3212hd-slip-fixed-drill-bushing-steel","title":"Boneham SF3212HD Slip-fixed Drill Bushing Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BONEHAM SF3212HD is a slip-fixed drill bushing designed for use in jig and fixture applications that require accurate, repeatable hole location guidance. Built to ANSI standards, this SF-series bushing features a 0.246 inch inside diameter (letter size D), a 0.5 inch body outside diameter, and a 0.75 inch length under head. Constructed from hardened steel with a surface hardness of 60 to 65 HRC, it delivers the wear resistance required for production drilling environments. The headed design and renewable construction make it straightforward to replace without retooling the fixture plate.\u003c\/p\u003e\u003cp\u003eThis bushing is intended for use in slip-fixed jig bushing applications where the bushing is retained by a lock screw rather than a press fit. It is compatible with the LS-1 lock screw, which secures the bushing in a liner or master bushing during drilling operations. Typical applications include metalworking production fixtures, assembly jigs, and tooling setups in machining environments. The SF-series configuration is commonly used when quick bushing changes between operations are needed. Hardened steel construction holds up under repeated drilling cycles without significant bore wear.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eANSI-standard SF-series slip-fixed configuration for repeatable hole guidance\u003c\/li\u003e\n\u003cli\u003e0.246 inch (letter D) inside diameter with a tight tolerance of plus 0.0001 to plus 0.0004 inches\u003c\/li\u003e\n\u003cli\u003eHardened steel construction rated 60 to 65 HRC for extended wear life\u003c\/li\u003e\n\u003cli\u003e0.75 inch length under head suits moderate-depth fixture applications\u003c\/li\u003e\n\u003cli\u003eRenewable design allows bushing replacement without disturbing the liner\u003c\/li\u003e\n\u003cli\u003eLS-1 lock screw compatible for secure retention during operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with LS-1 lock screws in ANSI-standard slip-fixed jig bushing systems. Fits liners or master bushings sized to accept a 0.5 inch body outside diameter SF-series bushing per ANSI specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by tooling or fixture specialists familiar with jig bushing systems. Ensure the mating liner or master bushing bore is clean and free of burrs before seating the bushing. Secure with the appropriate LS-1 lock screw torqued to fixture manufacturer specifications. Do not press-fit a slip-fixed bushing — it is designed for tool-free removal and replacement during production runs.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: SF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter)\u003c\/strong\u003e: D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.246 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: plus 0.0001 to plus 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: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 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\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\u003eHead Style\u003c\/strong\u003e: Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRenewable Bushing\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterbored\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock Screw Compatibility\u003c\/strong\u003e: LS-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: SF3212HD\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51745788363058,"sku":"SF3212HD","price":22.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_f588e361-a8e1-4df1-b77e-07b007b7d199.jpg?v=1788865168","url":"https:\/\/voomisupply.com\/products\/boneham-sf3212hd-slip-fixed-drill-bushing-steel","provider":"Voomi Supply","version":"1.0","type":"link"}