Boneham P888NR Press Fit Headless Drill Bushing

Product Description

The BONEHAM P888NR is a press fit headless drill bushing designed to guide drill bits with precision in jig and fixture applications. Built to ANSI standards, this bushing features a 27/32-inch inside diameter and a 1-3/8-inch body outside diameter, with an overall length of 1/2 inch. Constructed from steel hardened to 60 to 65 HRC, it delivers the wear resistance required for repetitive hole-location work. The inside diameter tolerance of +0.0002 to +0.0006 inches ensures consistent drill guidance over extended production runs. Licensed machinists, tool-and-die makers, and fixture builders are the typical installers.

This bushing is suited for use in drill jigs where a permanent, flush-mounted guide is required. The headless profile sits flush with the jig plate surface, making it appropriate for applications where a protruding head would interfere with workpiece clearance or clamping. The press fit installation method locks the bushing into a precisely reamed hole in the jig body without the need for additional hardware. It is a non-renewable bushing, meaning it is intended for fixed installations rather than quick-change liner setups.

Key Features

• Press fit installation — no fasteners or adhesives required
• Headless design sits flush with jig plate surface
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Inside diameter tolerance of +0.0002 to +0.0006 inches for accurate drill guidance
• Meets ANSI standards for drill bushing dimensions and tolerances
• Non-renewable fixed bushing — suited for permanent jig installations

Compatibility

Designed as an OEM-style replacement or new-install press fit headless drill bushing conforming to ANSI P-series dimensions, suitable for standard drill jig plates and fixtures accepting a 1-3/8-inch outside diameter bushing bore.

Installation Notes

Installation requires a precisely reamed hole in the jig plate sized to achieve the correct interference fit for a press fit bushing. A hydraulic or arbor press is typically used to seat the bushing flush and square — never drive with a hammer directly on the bushing face. Verify hole and bushing diameters with calibrated gauges before pressing. Once installed, this non-renewable bushing is not designed for removal and reinstallation.