Boneham P326GX Press Fit Headless Drill Bushing

Product Description

The BONEHAM P326GX is a headless press fit drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Classified under industry code P, this bushing features a 15/64 inch inside diameter and a 1/2 inch outside diameter, with an overall length of 3/8 inch. Manufactured from steel hardened to 60 to 65 HRC, it delivers the wear resistance and dimensional stability required in production jig and fixture applications. The inside diameter tolerance is held to a tight range of plus 0.0001 to plus 0.0004 inches, ensuring consistent tool guidance across repeated operations. Licensed machinists, toolmakers, and jig builders install this type of component in drill jig assemblies.

This bushing is suited for use in drill jigs and fixture plates where a permanent, non-renewable bushing is required. Its headless profile sits flush with or below the jig plate surface, making it the correct choice when clearance above the workpiece is limited or when the bushing must not rotate in service. Typical applications include production machining environments in manufacturing, metalworking, and fabrication shops where hole location accuracy is critical across high-volume runs.

Key Features

• Press fit installation method for permanent, secure seating in jig plates
• Headless design sits flush with jig plate surface for low-profile clearance
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Inside diameter tolerance of plus 0.0001 to plus 0.0004 inches for precise tool guidance
• Non-renewable design optimized for fixed, high-repetition drill operations
• Meets ANSI standards for drill bushing dimensions and tolerances

Compatibility

Designed as an OEM-style replacement or direct-fit component for drill jigs and fixture assemblies requiring a P-series headless press fit bushing with a 1/2 inch outside diameter.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press or hydraulic press — never driven in with a hammer, as impact can damage the bore or the jig plate. Ensure the jig plate bore is machined to the correct interference fit tolerance before pressing the bushing in. Once installed, this bushing is not intended for removal or replacement. Deburr the jig plate bore and clean all surfaces before installation to ensure full seating.