Boneham P108BR Press Fit Headless Drill Bushing

Product Description

The BONEHAM P108BR is a headless, press fit drill bushing designed to guide drill bits with precision in metalworking and machining applications. Built to ANSI standards, this Type P bushing features a 0.0625 inch (1/16 inch) inside diameter with a close tolerance of +0.0001 to +0.0004 inches, ensuring accurate bit guidance and repeatable hole locations. The body outside diameter measures 5/32 inch with an overall length of 1/2 inch. Constructed from hardened steel at 60 to 65 HRC, this bushing resists wear under continuous drilling cycles. Machinists, toolmakers, and fixture builders install this component in drill jigs and tooling fixtures where consistent hole placement is required.

This bushing is suited for production drilling operations in machine shops, fabrication facilities, and tooling departments. The headless design allows the bushing to sit flush within a jig plate, making it appropriate for close-tolerance fixture work where a protruding head would interfere with workpiece clearance or clamping. It is not renewable and is intended as a permanently pressed component once installed in the jig body.

Key Features

• Press fit installation method for permanent, stable seating in jig plates
• Headless design allows flush mounting without interference
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise bit guidance
• Hardened steel construction at 60 to 65 HRC for extended wear resistance
• Meets ANSI standards for drill bushing dimensions and fitment
• Type P industry code for straightforward cross-reference with standard jig bushing catalogs

Compatibility

Designed as an ANSI-standard Type P press fit headless drill bushing for use in drill jigs and tooling fixtures requiring a 5/32 inch body outside diameter bore.

Installation Notes

Installation is performed by pressing the bushing into a prepared jig plate bore using an arbor press or hydraulic press — never drive with a hammer directly on the bushing face. The receiving bore should be machined to the appropriate press fit tolerance for the 5/32 inch outside diameter before installation. Once pressed in, this bushing is not intended for removal and replacement. Power down all associated machinery before performing any jig maintenance or bushing installation work.