{"product_id":"boneham-sf328hb-slip-fixed-drill-bushing-0-242-in-id-steel","title":"Boneham SF328HB Slip-fixed Drill Bushing 0.242 in Id Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BONEHAM SF328HB is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to ANSI standards, it features a 0.242 inch inside diameter (Letter Size C), a 0.5 inch body outside diameter, and a 0.5 inch length under head. The hardened steel construction reaches 60 to 65 HRC, providing long service life in high-cycle drilling operations. A headed design keeps the bushing seated flush against the jig plate, and the renewable construction allows the bushing to be replaced without disturbing the liner. Compatible with the LS-1 lock screw for positive retention during use.\u003c\/p\u003e\u003cp\u003eSlip-fixed bushings in the SF series are used in production drilling, reaming, and tooling jigs where a removable but locked bushing is required. This bushing installs into a press-fit liner already mounted in the jig plate, then locks in place with an LS-1 lock screw during the machining operation. Typical applications include metal fabrication shops, machine shops, and maintenance tooling setups requiring consistent hole location. The 51\/64 inch head outside diameter and 1\/4 inch head height provide a stable bearing surface on the jig face.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSlip-fixed SF series design with headed profile for positive jig plate seating\u003c\/li\u003e\n\u003cli\u003eHardened steel body at 60 to 65 HRC for extended wear life in production environments\u003c\/li\u003e\n\u003cli\u003eInside diameter tolerance of +0.0001 to +0.0004 inches for accurate tool guidance\u003c\/li\u003e\n\u003cli\u003eRenewable bushing construction allows field replacement without liner removal\u003c\/li\u003e\n\u003cli\u003eLS-1 lock screw compatible for secure retention during machining operations\u003c\/li\u003e\n\u003cli\u003eMeets ANSI standards for drill bushing dimensions and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with LS-1 lock screws and standard ANSI-dimensioned liner bushings used in drill jig and fixture assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or tooling technicians working with drill jigs and fixtures. Ensure the mating liner bushing is fully seated and secure in the jig plate before inserting the SF328HB. Power down all machinery before handling or replacing bushings in an active fixture. Secure the bushing with the appropriate LS-1 lock screw and verify free rotation or locked position as the application requires before resuming operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.242 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter)\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Outside Diameter\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.500 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: 1\/4 inches\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\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\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\u003eIndustry Code\u003c\/strong\u003e: SF\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: SF328HB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51747542597938,"sku":"SF328HB","price":21.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_50378b8d-53de-41c0-a897-cf346ae18d71.jpg?v=1788882231","url":"https:\/\/voomisupply.com\/products\/boneham-sf328hb-slip-fixed-drill-bushing-0-242-in-id-steel","provider":"Voomi Supply","version":"1.0","type":"link"}