{"product_id":"boneham-h328hu-press-fit-headed-drill-bushing-steel","title":"Boneham H328HU Press Fit Headed Drill Bushing Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM H328HU 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, this bushing features a 0.277 inch inside diameter and a 1\/2 inch body outside diameter, with a length under the head of 1\/2 inch. The headed design seats flush against the jig plate surface, providing a positive stop that resists axial movement under cutting loads. The inside diameter tolerance of +0.0001 to +0.0005 inches ensures consistent tool guidance and repeatable hole location across production runs. It is a permanent, non-renewable bushing installed by press fit into a prepared receiver hole in a drill jig or fixture.\u003c\/p\u003e\n\u003cp\u003eThis bushing is used in tooling and fixture applications across precision machining, metalworking, and fabrication environments. It is suited for drill jig plates where a permanent guide bushing is required and tool changes through the bushing are not needed. The press fit installation method makes it appropriate for high-volume production fixtures where the bushing position must remain fixed. Machinists, toolmakers, and fixture builders typically specify this bushing for jigs handling standard fractional and letter-size drill bits, reamers, and similar guided cutting tools.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eType H headed design provides a positive axial stop against the jig plate surface\u003c\/li\u003e\n  \u003cli\u003ePress fit installation method locks the bushing permanently in the receiver bore\u003c\/li\u003e\n  \u003cli\u003eInside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability under repeated cutting tool contact\u003c\/li\u003e\n  \u003cli\u003eHead outside diameter of 39\/64 inch and head height of 7\/32 inch for positive seating\u003c\/li\u003e\n  \u003cli\u003eNon-renewable design suited for permanent fixture applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a permanent press fit headed drill bushing for use in drill jigs and machining fixtures requiring a fixed, non-renewable guide bushing with a 0.277 inch inside diameter bore and 1\/2 inch body outside diameter.\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 into a precisely reamed receiver hole in the jig plate. The receiver hole should be machined to the correct interference fit tolerance before installation. Do not strike the bushing head directly with a hammer, as this can damage the head seating surface or distort the bore. Once pressed in, this bushing is not intended to be removed or replaced without reworking the fixture plate.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter (Decimal)\u003c\/strong\u003e: 0.2770 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Outside Diameter\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Outside Diameter\u003c\/strong\u003e: 39\/64 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\u003eInside Diameter Tolerance\u003c\/strong\u003e: +0.0001 to +0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead or Headless\u003c\/strong\u003e: Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRenewable Bushing\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\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: H328HU\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51727371141426,"sku":"H328HU","price":20.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/28681e7ca5dedc7dd9d2bc807b1004fb.jpg?v=1788676881","url":"https:\/\/voomisupply.com\/products\/boneham-h328hu-press-fit-headed-drill-bushing-steel","provider":"Voomi Supply","version":"1.0","type":"link"}