{"product_id":"boneham-h408jw-press-fit-headed-drill-bushing","title":"Boneham H408JW Press Fit Headed Drill Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM H408JW is a Type H press fit headed drill bushing manufactured from steel with a hardness rating of 60 to 65 HRC. It features an inside diameter of 0.386 inches (Letter W tolerance) and a body outside diameter of 5\/8 inches, with a 1\/2-inch length under the head. This bushing is pressed permanently into a jig plate to guide drill bits, reamers, or other cutting tools with consistent accuracy. It is installed by toolmakers, machinists, and fixture builders in production and job-shop environments where repeatable hole location is required.\u003c\/p\u003e\n\u003cp\u003eThe H408JW is suited for use in drill jig fixtures across general metalworking, machining, and fabrication applications. Its headed design provides a positive stop against the jig plate surface, making it appropriate for through-hole guidance applications where axial positioning of the bushing is critical. The press fit installation method means this bushing is intended for permanent or long-service installations where the bushing does not need to be swapped between operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eType H press fit design for permanent installation in drill jig plates\u003c\/li\u003e\n  \u003cli\u003eInside diameter of 0.386 inches with tolerance of +0.0001 to +0.0005 inches for precise tool guidance\u003c\/li\u003e\n  \u003cli\u003eBody outside diameter of 5\/8 inches with a head outside diameter of 51\/64 inches\u003c\/li\u003e\n  \u003cli\u003eHead height of 7\/32 inches provides a positive axial stop against the fixture surface\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60 to 65 HRC for wear resistance under repeated tooling contact\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI standards for drill bushing geometry and dimensional tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit component for drill jig fixtures requiring a Type H press fit headed bushing with a 0.386-inch inside diameter and 5\/8-inch body outside diameter per ANSI standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePress fit bushings are installed by toolmakers or machinists using an arbor press or hydraulic press — never driven in with a hammer, as this can distort the bore. The receiving hole in the jig plate must be machined to the appropriate interference fit tolerance before installation. Once pressed in, this bushing is not designed for removal and reinstallation. Verify bore diameter and surface finish of the jig plate hole prior to pressing to ensure proper seating and alignment.\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 (Decimal)\u003c\/strong\u003e: 0.386 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter (Letter)\u003c\/strong\u003e: W\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 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 51\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1\/2 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\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: H408JW\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51755635540274,"sku":"H408JW","price":18.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a3df753bfacdecf7a1650e3bb823de6_6f69f11f-a236-40bf-b113-b03fc3df8674.jpg?v=1788957363","url":"https:\/\/voomisupply.com\/products\/boneham-h408jw-press-fit-headed-drill-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}