Boneham P405JJ Press Fit Headless Drill Bushing

Product Description

The BONEHAM P405JJ is a press fit headless drill bushing engineered to guide cutting tools with precision during drilling, reaming, and boring operations. Classified under Industry Code P, this bushing features a 23/64-inch inside diameter and a 5/8-inch body outside diameter, with an overall length of 5/16 inches. Constructed from hardened steel with a surface hardness of 60 to 65 HRC, it delivers the wear resistance and dimensional stability required in high-volume production and tooling fixture applications. The headless design allows flush seating in jig plates without a protruding flange. Licensed machinists, tool and die makers, and precision metalworking shops are the primary installers of this component.

This bushing is suited for use in drill jigs and fixture plates where repeatable, accurate hole location is critical. The press fit installation method means it is driven or pressed directly into a prepared hole in the jig body, providing a permanent, non-renewable mount. It is appropriate for both short-run and production-volume applications in machine shops, fabrication facilities, and manufacturing environments that require ANSI-conforming drill bushing standards.

Key Features

• Industry Code P headless press fit bushing for permanent jig and fixture installation
• 23/64-inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches for accurate tool guidance
• 5/8-inch body outside diameter and 5/16-inch overall length for compact fixture integration
• Hardened steel construction rated 60 to 65 HRC for extended service life under repeated tool contact
• Headless design seats flush with jig plate surface - no flange protrusion
• Meets ANSI standards for drill bushing dimensions and tolerances

Compatibility

Designed as an ANSI-conforming press fit headless drill bushing for use in standard drill jig plates and tooling fixtures requiring a P-series bushing with a 23/64-inch bore.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press or hydraulic press to seat the bushing into a properly sized, tolerance-matched hole in the jig body. The receiving hole must be machined to the correct interference fit dimension before pressing. Do not strike the bushing directly with a hammer, as this can cause misalignment or damage to the bore. Once pressed in, this bushing is not designed for removal and replacement.