{"product_id":"boneham-h4828la-press-fit-headed-drill-bushing-type-h","title":"Boneham H4828LA Press Fit Headed Drill Bushing Type H","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM H4828LA is a Type H press fit headed drill bushing designed to guide cutting tools with precise repeatability in jig and fixture applications. Machined from steel and hardened to 60 to 65 HRC, this bushing resists wear under continuous drilling operations. The headed design seats against the jig plate surface, preventing axial migration during use. With an inside diameter of 15\/32 inches and a body outside diameter of 3\/4 inches, it accepts standard drill shanks and fits correspondingly sized liner bushings or jig plate bores. Installation is permanent — once pressed in, the bushing is not intended for removal or replacement.\u003c\/p\u003e\n\u003cp\u003eThis bushing is suited for production drilling, reaming, and boring fixtures in metalworking and fabrication shops. It is commonly installed in hardened jig plates used in repetitive-hole operations on steel, aluminum, and similar workpiece materials. The Type H designation follows ANSI standards, making it interchangeable within compliant tooling setups. Machinists, tool-and-die makers, and fixture builders working in job shops or production environments will specify this bushing where a permanent, headed guide is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePress fit installation — permanently locks into jig plate bore without fasteners\u003c\/li\u003e\n  \u003cli\u003eHeaded design provides a positive shoulder stop against the jig plate surface\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60 to 65 HRC for extended wear life under high-cycle drilling\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of +0.0001 to +0.0005 inches maintains accurate tool guidance\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI standards for Type H drill bushing geometry\u003c\/li\u003e\n  \u003cli\u003eNon-renewable — intended as a fixed, long-service installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an ANSI-compliant Type H press fit headed drill bushing for use in standard jig plates and fixture assemblies requiring a 3\/4 inches body outside diameter bore.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or tool-and-die maker using an arbor press or hydraulic press. The receiving bore in the jig plate must be machined to the appropriate interference fit tolerance before pressing. Never drive the bushing in with a hammer, as this can damage the bore or distort the bushing ID. Verify bore diameter and surface finish before pressing to ensure concentricity and proper seating under the head.\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: 15\/32 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\u003eHead Outside Diameter\u003c\/strong\u003e: 59\/64 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 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: H4828LA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51754284515634,"sku":"H4828LA","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a3df753bfacdecf7a1650e3bb823de6_a47d35cd-0342-4d3c-a424-0401a951dd40.jpg?v=1788944252","url":"https:\/\/voomisupply.com\/products\/boneham-h4828la-press-fit-headed-drill-bushing-type-h","provider":"Voomi Supply","version":"1.0","type":"link"}