{"product_id":"boneham-sf3228iz-slip-fixed-drill-bushing-0-339-in-id-steel","title":"Boneham SF3228IZ Slip-fixed Drill Bushing 0.339 in Id Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SF3228IZ is a slip-fixed drill bushing designed for precision hole location in jig and fixture applications. It features an inside diameter of 0.339 inches (Letter R) with a tight tolerance of +0.0001 to +0.0005 inches, a body outside diameter of 0.5 inches, and a length under head of 1.75 inches. Constructed from steel, this head-style bushing is counterbored and accepts an LS-1 compatible lock screw to secure it in place. It is classified under industry code SF and is designed as a renewable bushing, allowing field replacement without disturbing the liner bushing pressed into the jig plate.\u003c\/p\u003e\n\u003cp\u003eThis bushing is used in drill jig fixtures across metalworking, machining, and fabrication operations. It is appropriate for production environments where accurate, repeatable drill guidance is required. The renewable design suits applications where bushings must be swapped out during a job or replaced after wear. Machinists, toolmakers, and fixture builders are the typical end users. The slip-fixed configuration relies on the LS-1 lock screw to prevent rotation and axial movement during drilling operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eInside diameter of 0.339 inches (Letter R) with tolerance of +0.0001 to +0.0005 inches for precise drill guidance\u003c\/li\u003e\n  \u003cli\u003eBody outside diameter of 0.5 inches and length under head of 1.75 inches\u003c\/li\u003e\n  \u003cli\u003eHead outside diameter of 0.797 inches (51\/64 inch) and head height of 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003eCounterbored head design compatible with LS-1 lock screw for positive retention\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing construction allows replacement in the field without removing the liner\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production drilling and reaming operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with LS-1 compatible lock screws. Fits standard SF-series liner bushings sized for a 0.5 inch body outside diameter. Verify liner bushing inside diameter and counterbore dimensions against your fixture plate before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by toolmakers or machinists during jig fixture assembly or maintenance. The bushing slips into the installed liner and is locked in position using the appropriate LS-1 lock screw — do not operate the bushing without the lock screw engaged. Before replacing a worn bushing, ensure the drill press or machine is powered down and all tooling is clear. Confirm the liner bushing bore and seating surface are clean and free of chips or burrs to maintain dimensional accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.339 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter)\u003c\/strong\u003e: R\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: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 0.797 inches (51\/64 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: SF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Style\u003c\/strong\u003e: Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbored\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRenewable Bushing\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Screw Compatibility\u003c\/strong\u003e: LS-1\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: SF3228IZ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51727895331122,"sku":"SF3228IZ","price":30.14,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/boneham-sf3228iz-slip-fixed-drill-bushing-0-339-in-id-steel","provider":"Voomi Supply","version":"1.0","type":"link"}