{"product_id":"boneham-sf4828ir-slip-fixed-drill-bushing-0-323-in-id-steel","title":"Boneham SF4828IR Slip-fixed Drill Bushing 0.323 in Id Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SF4828IR is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Manufactured from steel and hardened to 60 to 65 HRC, this bushing provides consistent bore alignment and long service life under repeated drilling cycles. The inside diameter is 0.323 inches (letter size P) with a tolerance of +0.0001 to +0.0005 inches, ensuring tight positional accuracy. A headed design and LS-1 compatible lock screw make installation and removal straightforward for toolroom technicians and machinists working with renewable bushing systems.\u003c\/p\u003e\n\u003cp\u003eThis bushing is suited for production drilling, reaming, and boring operations in industrial jigs and fixtures. The SF industry code designates a slip-fixed style, which allows the bushing to be installed into a liner bushing and locked in place during the operation. It is a renewable bushing, meaning it can be replaced independently of the liner when wear occurs, reducing fixture maintenance costs. Typical users include machining shops, tool and die operations, and assembly fixtures requiring repeatable hole location.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip-fixed (SF) bushing style — installs into a liner bushing and locks in place with an LS-1 compatible lock screw\u003c\/li\u003e\n  \u003cli\u003eInside diameter of 0.323 inches (letter size P) with a precision tolerance of +0.0001 to +0.0005 inches\u003c\/li\u003e\n  \u003cli\u003eBody outside diameter of 0.75 inches and length under head of 1.75 inches\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60 to 65 HRC for extended wear resistance\u003c\/li\u003e\n  \u003cli\u003eHeaded design with a 1-3\/64 inch head outside diameter and 0.25 inch head height\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing — field-replaceable without replacing the liner or fixture plate\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards for drill bushing dimensions and tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with LS-1 lock screws and standard liner bushings conforming to ANSI slip-fixed bushing specifications. Compatible with jig and fixture systems that accept a 0.75 inch body outside diameter SF-style renewable bushing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and removal should be performed by a qualified machinist or toolroom technician. Before servicing, ensure the drill press or machining center is fully de-energized and the workpiece fixture is secured. Use the appropriate LS-1 lock screw to retain the bushing during operation and verify seating in the liner bushing before running the tool. Do not force the bushing into a liner with a mismatch in outside diameter, as this will damage the bore alignment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.323 inches (Letter Size P)\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: 0.75 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: 1-3\/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\u003eBushing Style\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\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  \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: SF4828IR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51727936422194,"sku":"SF4828IR","price":30.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_d6d691ac-f6fa-4b09-8dd1-a904b2265822.jpg?v=1788684742","url":"https:\/\/voomisupply.com\/products\/boneham-sf4828ir-slip-fixed-drill-bushing-0-323-in-id-steel","provider":"Voomi Supply","version":"1.0","type":"link"}