{"product_id":"boneham-h4028ki-press-fit-headed-drill-bushing","title":"Boneham H4028KI Press Fit Headed Drill Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BONEHAM H4028KI is a Type H press fit headed drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Manufactured from steel and hardened to 60 to 65 HRC, this bushing resists wear under repeated tool contact. It features an inside diameter of 0.413 inches (Letter size Z) with a tight tolerance of +0.0001 to +0.0005 inches, a body outside diameter of 5\/8 inch, and a length under head of 1-3\/4 inches. The head outside diameter measures 51\/64 inch with a head height of 7\/32 inch. It installs via press fit and is intended for use without a liner bushing. Machinists and toolmakers install this component in jig plates and fixture tooling across production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis bushing suits applications where a permanent, non-renewable guide is required in a drill jig or fixture. The headed style locates against the jig plate face, providing a positive stop during press installation. It is appropriate for use in metalworking environments requiring ANSI-compliant tooling bushings, whether in low-volume custom fixturing or high-cycle production jigs where tool guidance accuracy is critical to part quality.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePress fit installation for permanent, fixed positioning in jig plate bores\u003c\/li\u003e\n\u003cli\u003eInside diameter of 0.413 inches (Letter Z) with tolerance of +0.0001 to +0.0005 inches for precise tool guidance\u003c\/li\u003e\n\u003cli\u003eSteel construction hardened to 60 to 65 HRC for extended wear resistance\u003c\/li\u003e\n\u003cli\u003eHead outside diameter of 51\/64 inch with 7\/32 inch head height for positive plate registration\u003c\/li\u003e\n\u003cli\u003eANSI-compliant Type H headed bushing configuration\u003c\/li\u003e\n\u003cli\u003eNon-renewable design — suited for permanent fixture installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an ANSI-standard Type H press fit headed drill bushing for use in drill jigs and machining fixtures requiring a permanent, non-renewable guide bushing installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or toolmaker using an arbor press or hydraulic press to seat the bushing flush into the jig plate bore. The receiving bore should be finish-reamed to the specified interference fit tolerance before pressing to avoid damaging the bushing or distorting the inside diameter. Never drive the bushing with impact tools, as this can crack the hardened body or shift the bore alignment. Confirm inside diameter gauge after installation to verify dimensional integrity has been maintained.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Press Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter)\u003c\/strong\u003e: Z\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.4130 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: 5\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 51\/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\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing Material\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\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\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\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: H4028KI\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51753200550194,"sku":"H4028KI","price":27.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a3df753bfacdecf7a1650e3bb823de6_5bb3da84-c9ea-427e-8dfa-e9d29ac43a71.jpg?v=1788933811","url":"https:\/\/voomisupply.com\/products\/boneham-h4028ki-press-fit-headed-drill-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}