{"product_id":"boneham-h4828io-press-fit-headed-drill-bushing","title":"Boneham H4828IO Press Fit Headed Drill Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BONEHAM H4828IO is a Type H press fit headed drill bushing designed to guide drill bits with precision in jig and fixture applications. Built from steel, this bushing features a 0.316-inch inside diameter and a 3\/4-inch body outside diameter. The press fit installation method creates a secure, permanent seat in the jig plate without the need for locking mechanisms. Machinists and toolmakers install this bushing to maintain consistent hole location and tolerances across repeated drilling operations.\u003c\/p\u003e\u003cp\u003eThis bushing is suited for production drilling environments where a permanent, non-renewable guide is acceptable. The headed design provides a positive stop against the jig plate surface, controlling insertion depth and preventing the bushing from being pushed through during operation. With a 1-3\/4-inch length under the head, it accommodates moderate plate thickness and provides adequate drill guidance along the tool path.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType H press fit design for permanent installation in drill jigs and fixtures\u003c\/li\u003e\n\u003cli\u003e0.316-inch inside diameter with a tolerance of +0.0001 to +0.0005 inches for precise drill guidance\u003c\/li\u003e\n\u003cli\u003e3\/4-inch body outside diameter and 59\/64-inch head outside diameter for secure seating\u003c\/li\u003e\n\u003cli\u003e1-3\/4-inch length under head accommodates standard jig plate thicknesses\u003c\/li\u003e\n\u003cli\u003e7\/32-inch head height provides a low-profile positive stop at the plate surface\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability in repeated-use drilling applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit bushing for drill jigs and fixtures requiring a Type H press fit headed bushing with a 0.316-inch inside diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePress fit bushings are installed by a toolmaker or machinist using an arbor press or similar controlled-force equipment. The receiving hole in the jig plate must be machined to the correct interference fit tolerance before installation. Once pressed in, this bushing is not designed for removal or replacement. Inspect the jig plate bore for burrs or contamination before pressing to avoid misalignment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing Type\u003c\/strong\u003e: Type H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Press Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter Code)\u003c\/strong\u003e: O\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.316 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: 0.75 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\u003eLength Under Head\u003c\/strong\u003e: 1.75 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\u003eHead Style\u003c\/strong\u003e: Headed\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\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: H4828IO\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51730335236402,"sku":"H4828IO","price":27.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b617461c6c05368cdcf2b33f32fca5ff_ed18cbb4-35d5-43ee-bb88-c46871c40fee.jpg?v=1788715555","url":"https:\/\/voomisupply.com\/products\/boneham-h4828io-press-fit-headed-drill-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}