{"product_id":"boneham-p326hd-press-fit-headless-drill-bushing","title":"Boneham P326HD Press Fit Headless Drill Bushing","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BONEHAM P326HD is a press fit headless drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to industry code P, this bushing features a 0.246 inch inside diameter (letter size D), a 0.5 inch outside diameter, and an overall length of 0.375 inches. The bore holds an inside diameter tolerance of +0.0001 to +0.0004 inches, ensuring consistent tool guidance across repeated operations. Constructed from steel hardened to 60 to 65 HRC, the P326HD delivers the wear resistance required in high-cycle production environments. Machinists, tool and die makers, and fixture builders are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis bushing is used in drill jigs and machining fixtures where a permanent, non-renewable press fit installation is required. The headless profile allows the bushing to sit flush within a jig plate, making it suitable for close-tolerance layouts where a flanged head would interfere with workpiece positioning or adjacent bushings. It is appropriate for light to medium production drilling, reaming, and similar guided-tool operations in both shop and field fixture setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePress fit installation method for permanent, non-renewable mounting in jig plates\u003c\/li\u003e\n  \u003cli\u003eHeadless design allows flush seating within the fixture body\u003c\/li\u003e\n  \u003cli\u003e0.246 inch ID (Letter D) with tight tolerance of +0.0001 to +0.0004 inches for precise tool guidance\u003c\/li\u003e\n  \u003cli\u003eSteel construction hardened to 60 to 65 HRC for extended wear life\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI standards for drill bushing dimensions and tolerances\u003c\/li\u003e\n  \u003cli\u003eCompact 0.375 inch overall length suits thin jig plate applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an ANSI-standard press fit headless drill bushing for use in drill jigs and machining fixtures requiring a permanent bushing installation at letter size D (0.246 inch ID) with a 0.5 inch outside diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tool and die professionals using a press or arbor press to drive the bushing into a pre-machined jig plate bore. The mating bore in the jig plate must be machined to the appropriate interference fit tolerance to retain the bushing securely without damage. Because this is a non-renewable bushing, it is not designed to be removed and replaced in service; jig plate replacement or re-boring is required if the bushing must be changed. Verify that the jig plate material and hardness are compatible with the press fit retention requirements before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.246 inches (Letter D)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter Tolerance\u003c\/strong\u003e: +0.0001 to +0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Method\u003c\/strong\u003e: Press Fit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Style\u003c\/strong\u003e: Headless\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Industry Code\u003c\/strong\u003e: P\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: P326HD\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BONEHAM","offers":[{"title":"Default Title","offer_id":51729161388338,"sku":"P326HD","price":16.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/772b15bcdae08b51210f0eebedf78b00_83f69f47-2a3a-4cee-8cc3-ddc52c740316.jpg?v=1788701132","url":"https:\/\/voomisupply.com\/products\/boneham-p326hd-press-fit-headless-drill-bushing","provider":"Voomi Supply","version":"1.0","type":"link"}