{"product_id":"boneham-sf4828jj-slip-fixed-drill-bushing-23-64-in-id","title":"Boneham SF4828JJ Slip-fixed Drill Bushing 23\/64 in Id","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SF4828JJ is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to the SF industry standard, it features a 23\/64 inch inside diameter and a 0.750 inch body outside diameter, with a 1-3\/4 inch length under the head. The bushing is machined from steel and hardened to 60 to 65 HRC for long service life under repeated drilling cycles. The headed design allows the bushing to seat against the jig plate surface for consistent tool positioning. An LS-1 compatible lock screw secures the bushing in its liner during operation.\u003c\/p\u003e\n\u003cp\u003eThis bushing is suited for use in production drilling jigs and precision fixtures across metalworking, toolmaking, and machining environments. The slip-fixed installation method allows the bushing to be removed and replaced without disturbing the liner, making it practical for setups that require tool changes or bushing swaps between operations. It is renewable, so worn bushings can be exchanged individually rather than reworking the fixture plate.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSF industry-standard slip-fixed bushing for use with a mating liner\u003c\/li\u003e\n  \u003cli\u003e23\/64 inch inside diameter with a close tolerance of +0.0001 to +0.0005 inch for accurate tool guidance\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60 to 65 HRC for wear resistance\u003c\/li\u003e\n  \u003cli\u003eHeaded design seats flush against the jig plate for repeatable depth control\u003c\/li\u003e\n  \u003cli\u003eLS-1 compatible lock screw interface secures the bushing in position during drilling\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing — replaceable without modifying the jig plate or liner\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an SF-type slip-fixed renewable drill bushing for use with a compatible SF liner and LS-1 lock screw in standard drill jig assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by toolmakers or machining setup personnel. The slip-fixed bushing seats into a press-fit liner that has already been installed in the jig plate — do not attempt to press the bushing directly into the plate without a liner. Ensure the lock screw groove is properly aligned before engaging the LS-1 lock screw. Inspect the bore and mating liner for chips or debris before installing a replacement bushing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: SF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Slip-Fixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 23\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: +0.0001 to +0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Outside Diameter\u003c\/strong\u003e: 0.750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 1-3\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 1\/4 inch\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-1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead or Headless\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\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: SF4828JJ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51738848756018,"sku":"SF4828JJ","price":30.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_cfe28e07-ebec-4870-9f4b-5dc8094aa563.jpg?v=1788805502","url":"https:\/\/voomisupply.com\/products\/boneham-sf4828jj-slip-fixed-drill-bushing-23-64-in-id","provider":"Voomi Supply","version":"1.0","type":"link"}