{"product_id":"boneham-sft288hu-slip-fixed-drill-bushing-0-277-in-steel","title":"Boneham SFT288HU Slip-fixed Drill Bushing 0.277 in Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM SFT288HU is a slip-fixed drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Built to industry code SF, it features a 0.277 inch inside diameter (Letter J) with a tight tolerance of +0.0001 to +0.0005 inches, ensuring consistent hole location and minimal tool deflection. The body outside diameter measures 0.4375 inches (7\/16 inch) and the length under head is 0.5 inches (1\/2 inch). Constructed from steel, this bushing is renewable and includes a head with a 5\/8 inch outside diameter and 1\/4 inch head height. It is compatible with the LS-TW-2 lock screw for secure positioning in the jig plate.\u003c\/p\u003e\n\u003cp\u003eThis bushing is suited for use in drill jigs and fixture plates in production machining, metal fabrication, and toolroom environments. The slip-fixed design allows the bushing to be installed and locked into a liner bushing already pressed into the jig plate, making it a common choice for operations requiring tool changes between drilling and reaming on the same hole location. Machinists, tool and die makers, and fixture builders working in manufacturing or job shop settings will find this bushing appropriate for a wide range of close-tolerance applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSF industry code slip-fixed design for use with pressed liner bushings\u003c\/li\u003e\n  \u003cli\u003eInside diameter 0.277 inches (Letter J) with tolerance of +0.0001 to +0.0005 inches for precise tool guidance\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production machining environments\u003c\/li\u003e\n  \u003cli\u003eRenewable bushing — can be removed and replaced without disturbing the jig plate\u003c\/li\u003e\n  \u003cli\u003eLS-TW-2 lock screw compatible for secure, rotation-resistant seating\u003c\/li\u003e\n  \u003cli\u003eHead type with 5\/8 inch head OD and 1\/4 inch head height for positive axial positioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with LS-TW-2 lock screws. Designed for use with standard SF-style liner bushings in drill jigs and fixture plates. No specific machine or system models were identified in the product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or toolroom technicians. The slip-fixed bushing is inserted into a mating liner bushing already seated in the jig plate and locked in place with the appropriate LS-TW-2 lock screw. Ensure the jig plate and liner bushing are clean and free of chips or debris before installation. Verify inside diameter tolerance requirements against the tool shank size before fitting to avoid improper guidance or excessive wear.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.2770 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter)\u003c\/strong\u003e: J\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: 0.4375 inches (7\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: SF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\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-TW-2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Slip-Fixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 pounds\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: SFT288HU\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51738646708530,"sku":"SFT288HU","price":21.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f13c045e5a2ce60043c7847b5d0cbbe0_ed234b80-e866-44f7-b9c8-351dce316949.jpg?v=1788802285","url":"https:\/\/voomisupply.com\/products\/boneham-sft288hu-slip-fixed-drill-bushing-0-277-in-steel","provider":"Voomi Supply","version":"1.0","type":"link"}