{"product_id":"boneham-l6412nc-headless-l-drill-bushing-liner-3-4-in","title":"Boneham L6412NC Headless L Drill Bushing Liner 3\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BONEHAM L6412NC is a headless L-type drill bushing liner designed to guide drill bits with precision in fixed jig applications. It features a 3\/4-inch inside diameter, a 1-inch body outside diameter, and a 3\/4-inch liner length. Constructed from alloy steel and heat-treated to a hardness of 60-65 HRC, this liner resists wear under repeated drilling cycles. Installation is press fit, seating the bushing securely into a jig plate without a locking head. Machinists, toolmakers, and fixture builders rely on this liner to maintain hole location accuracy across production runs.\u003c\/p\u003e\u003cp\u003eThis liner is suited for use in drill jigs where a flush, headless profile is required. The press fit design is appropriate for permanent or semi-permanent bushing installations in steel or cast jig plates. It is commonly used in production machining environments where consistent hole placement is critical across multiple workpieces. The L-series designation indicates a standard liner that accepts a renewable slip or fixed bushing on the inside diameter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/4-inch inside diameter for precise drill guidance\u003c\/li\u003e\n\u003cli\u003e1-inch body outside diameter for secure press fit seating\u003c\/li\u003e\n\u003cli\u003e3\/4-inch liner length suits standard jig plate thicknesses\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction with 60-65 HRC hardness for extended wear life\u003c\/li\u003e\n\u003cli\u003eHeadless design provides a flush surface profile in the jig plate\u003c\/li\u003e\n\u003cli\u003ePress fit installation eliminates need for external locking hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation liner for standard L-series drill jig bushing applications where a 3\/4-inch ID headless press fit liner is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or toolmakers using a drill press or arbor press to seat the liner flush into a precision-bored jig plate hole. Power down any machinery in the work area before pressing the bushing into place. Confirm the bore diameter and surface finish of the jig plate meet manufacturer tolerances for press fit retention before installation. Do not hammer the liner directly without a proper driver to avoid damaging the bore or liner face.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 3\/4 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\u003eLiner Length\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 60-65 HRC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Press Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiner Industry Code\u003c\/strong\u003e: L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31171603\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: L6412NC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51754602561842,"sku":"L6412NC","price":19.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/772b15bcdae08b51210f0eebedf78b00_389c6789-3c43-4fef-9384-70baa7dd68e6.jpg?v=1788947027","url":"https:\/\/voomisupply.com\/products\/boneham-l6412nc-headless-l-drill-bushing-liner-3-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}