{"product_id":"boneham-sft2812hb-slip-fixed-drill-bushing-0-242-in-steel","title":"Boneham SFT2812HB Slip-fixed Drill Bushing 0.242 in Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SFT2812HB is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. It carries industry code SF and features a 0.242 inch inside diameter with an inside diameter tolerance of +0.0001 to +0.0004 inches, ensuring tight, repeatable tool guidance. The body outside diameter measures 0.4375 inches (7\/16 inch) with a 5\/8 inch head outside diameter and a 1\/4 inch head height. Constructed from steel hardened to 60 to 65 HRC, this bushing delivers the wear resistance required for production drilling environments. It is a renewable bushing, allowing replacement without disturbing the liner or fixture plate. Lock screw compatibility with the LS-TW-2 fastener secures the bushing in its liner during operation.\u003c\/p\u003e\n\u003cp\u003eThe SFT2812HB is suited for use in drill jigs, fixtures, and tooling plates in manufacturing, maintenance, and machine shop environments. The slip-fixed design allows the bushing to be installed and locked in place using a compatible lock screw, making it appropriate for single-operation drilling setups where tool changes are not required mid-cycle. The 3\/4 inch length under the head accommodates standard fixture plate thicknesses. Machinists, toolmakers, and maintenance technicians working with precision drilling fixtures are the primary installers of this component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip-fixed installation method with LS-TW-2 lock screw compatibility for secure seating in drill liners\u003c\/li\u003e\n  \u003cli\u003e0.242 inch inside diameter (Letter C) with +0.0001 to +0.0004 inch tolerance for precise tool guidance\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60 to 65 HRC for long service life in repetitive drilling applications\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing design allows field replacement without reworking the fixture plate\u003c\/li\u003e\n  \u003cli\u003eHead outside diameter of 5\/8 inch and head height of 1\/4 inch for positive seating against the jig surface\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards for drill bushing dimensional conformance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with LS-TW-2 compatible lock screws in standard ANSI slip-fixed drill liner systems. Confirm liner inside diameter and fixture plate thickness match the 0.4375 inch body outside diameter and 3\/4 inch length under head before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by toolmakers or machinists familiar with drill jig assembly. Press or hand-seat the bushing into the appropriate liner, then secure with an LS-TW-2 compatible lock screw. Ensure the fixture and workpiece are properly clamped and all rotating equipment is de-energized before servicing or replacing bushings. Do not force an oversized bushing into a liner, as this can damage bore geometry and compromise tool guidance accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.242 inches (Letter C)\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: 0.4375 inches (7\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Slip-Fixed (SF)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbored\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRenewable\u003c\/strong\u003e: Yes\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\u003eLock Screw Compatibility\u003c\/strong\u003e: LS-TW-2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: BONEHAM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SFT2812HB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51728729768242,"sku":"SFT2812HB","price":22.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_08a56ef3-bd00-41c4-8f8f-a754a1219c39.jpg?v=1788695566","url":"https:\/\/voomisupply.com\/products\/boneham-sft2812hb-slip-fixed-drill-bushing-0-242-in-steel","provider":"Voomi Supply","version":"1.0","type":"link"}