{"product_id":"boneham-h4828lg-press-fit-headed-drill-bushing","title":"Boneham H4828LG Press Fit Headed Drill Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM H4828LG is a Type H press fit headed drill bushing designed to guide cutting tools with precision in metalworking and fabrication applications. Machined from steel and hardened to 60 to 65 HRC, this bushing provides a durable wear surface that maintains accurate hole placement under repeated drilling cycles. The inside diameter measures 31\/64 inches with a tight tolerance of +0.0001 to +0.0005 inches, ensuring consistent tool guidance. The body outside diameter is 3\/4 inches, and the length under the head is 1-3\/4 inches. It installs by press fit into a prepared jig plate, requiring no additional locking hardware.\u003c\/p\u003e\n\u003cp\u003eThis bushing is used in drill jigs and fixtures across production machining, tool and die, and general metalworking environments. The headed design seats flush against the jig plate surface, providing a positive stop that prevents the bushing from being driven through during operation. Typical applications include repetitive hole-drilling operations where positional accuracy is critical across multiple workpieces. This part is a permanent, non-renewable bushing — once pressed in, it is not intended for routine field replacement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePress fit installation — no locking collar or set screw required\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance\u003c\/li\u003e\n  \u003cli\u003eHardness of 60 to 65 HRC for extended wear life in high-cycle drilling operations\u003c\/li\u003e\n  \u003cli\u003eHead outside diameter of 59\/64 inches with a head height of 7\/32 inches for positive seating\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI standards for drill bushing dimensions and tolerances\u003c\/li\u003e\n  \u003cli\u003eNon-renewable design — intended as a permanent press fit installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a permanent OEM-style press fit drill bushing for use in steel or cast-iron jig plates with a 3\/4 inch body bore, conforming to ANSI Type H bushing specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tool and die specialists using an arbor press or hydraulic press. The receiving bore in the jig plate must be precision-reamed to the correct interference fit tolerance before pressing the bushing in. Ensure the jig plate is properly supported to avoid distortion during press-in. This bushing is not removable without machining out the jig plate bore.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Type\u003c\/strong\u003e: Type H (Headed, Press Fit)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 31\/64 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: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 59\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 7\/32 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\u003eInstallation Method\u003c\/strong\u003e: Press Fit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRenewable\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbored\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\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: H4828LG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51750443122994,"sku":"H4828LG","price":27.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a3df753bfacdecf7a1650e3bb823de6_142df77e-d541-437c-9c17-9d58e1bbd114.jpg?v=1788915522","url":"https:\/\/voomisupply.com\/products\/boneham-h4828lg-press-fit-headed-drill-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}