{"product_id":"boneham-sf6412lk-slip-fixed-drill-bushing-steel","title":"Boneham SF6412LK Slip-fixed Drill Bushing Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SF6412LK is a slip-fixed (SF) drill bushing designed to guide drill bits and reamers with precision in jig plate applications. It features a 0.5 inch inside diameter, a 1 inch body outside diameter, and a 3\/4 inch length under the head. Constructed from steel and hardened to 60-65 HRC, it delivers the wear resistance required in high-repetition drilling operations. The head outside diameter measures 1-27\/64 inches with a 3\/8 inch head height. The inside diameter tolerance is held to +0.0001 to +0.0005 inches, ensuring consistent hole location across production runs. It is compatible with the LS-2 lock screw for secure retention in the liner bushing.\u003c\/p\u003e\n\u003cp\u003eSlip-fixed bushings of this type are used in drill jig assemblies across metal fabrication, machine shops, and precision manufacturing environments. The SF designation indicates this bushing presses into a liner bushing and is locked in place with a compatible lock screw, making it interchangeable without disturbing the jig plate. This configuration is standard in production tooling where multiple operations or drill sizes are required at a single jig location. Machinists, tool and die makers, and fixture builders are the typical installers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip-fixed design locks into liner bushing with LS-2 compatible lock screw\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of +0.0001 to +0.0005 inches for precise drill guidance\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60-65 HRC for extended wear life\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing — replaceable without modifying the jig plate\u003c\/li\u003e\n  \u003cli\u003eHead style provides positive axial positioning against the liner bushing face\u003c\/li\u003e\n  \u003cli\u003eConforms to 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-2 lock screws and standard ANSI-dimensioned liner bushings. Suitable for SF-series slip-fixed bushing applications requiring a 0.5 inch inside diameter and 1 inch body outside diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists or tool and die makers as part of jig plate assembly or bushing replacement. Ensure the liner bushing bore and jig plate surface are clean and free of chips before inserting the slip-fixed bushing. Use the correct LS-2 lock screw to secure the bushing and prevent rotation or axial movement during drilling. Do not force the bushing into an undersized or damaged liner — verify liner ID tolerance before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.5 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: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 1-27\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Material\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\u003eCounterbored\u003c\/strong\u003e: No\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-2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: SF\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: SF6412LK\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51734275359026,"sku":"SF6412LK","price":25.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d089b0a7b36c5d4ca8f716b32e5b0d8a_52c1b733-35a5-49fd-b72c-fbb89bcbcb4c.jpg?v=1788762057","url":"https:\/\/voomisupply.com\/products\/boneham-sf6412lk-slip-fixed-drill-bushing-steel","provider":"Voomi Supply","version":"1.0","type":"link"}