{"product_id":"boneham-h4816lk-press-fit-headed-drill-bushing","title":"Boneham H4816LK Press Fit Headed Drill Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM H4816LK is a Type H press fit headed drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Manufactured from hardened steel with a surface hardness of 60 to 65 HRC, this bushing resists wear across high-cycle production runs. It features a 0.5-inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches, a 0.75-inch body outside diameter, and a 1-inch length under the head. The headed design seats flush into the jig plate, providing a positive stop that prevents the bushing from pushing through under cutting forces. Machinists, tool-and-die makers, and fixture builders install this component in drill jig assemblies where repeatable hole location accuracy is required.\u003c\/p\u003e\n\u003cp\u003eThis bushing is suited for use in fixed drill jig applications where the bushing is pressed directly into the jig plate and is not intended to be removed and replaced during normal operation. Typical applications include production drilling fixtures in metal fabrication, aerospace tooling, and machine shop environments. The headed configuration is commonly used where the jig plate surface is accessible from the top and a flush or recessed bushing would not provide adequate retention. This is a non-renewable bushing, meaning it is installed permanently for the life of the jig or until the fixture is reworked.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eType H press fit installation — no locking hardware required for permanent fixture mounting\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of +0.0001 to +0.0005 inches for consistent tool guidance\u003c\/li\u003e\n  \u003cli\u003e60 to 65 HRC hardness rating for extended service life in high-cycle drilling operations\u003c\/li\u003e\n  \u003cli\u003eHeaded design with 59\/64-inch head outside diameter and 7\/32-inch head height provides positive axial retention\u003c\/li\u003e\n  \u003cli\u003eNon-renewable design — pressed in permanently, eliminating loosening or rotation during use\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI standards for drill bushing dimensional conformance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style press fit headed drill bushing for use in drill jig plates requiring a 0.75-inch body outside diameter bore and a 0.5-inch tool guide diameter, conforming to ANSI Type H bushing standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tool-and-die technicians using an arbor press or hydraulic press to drive the bushing into a pre-bored jig plate hole sized to the appropriate interference fit. Ensure the receiving bore is clean and free of burrs before pressing the bushing in. Do not hammer directly on the head flange, as this may damage the seating surface or distort the bore. Because this is a non-renewable bushing, plan the jig plate bore location carefully before pressing, as removal typically damages the surrounding material.\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 Press Fit Headed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Decimal\u003c\/strong\u003e: 0.5000 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 (3\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 59\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 7\/32 inch\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\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\u003eStandards\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: H4816LK\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51755345641778,"sku":"H4816LK","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a3df753bfacdecf7a1650e3bb823de6_524b995d-fb61-40a6-868a-f803cc1ea064.jpg?v=1788953963","url":"https:\/\/voomisupply.com\/products\/boneham-h4816lk-press-fit-headed-drill-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}