Boneham PT128BJ Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM PT128BJ is a press fit headless drill bushing manufactured from steel and designed to guide drill bits with precision in jig and fixture applications. Carrying industry bushing code P, it features an inside diameter of 0.052 inches (wire size 55) with a tight tolerance of +0.0001 to +0.0004 inches, an outside diameter of 3/16 inches, and an overall length of 1/2 inch. The headless profile allows flush seating in bushing plates where a protruding flange would interfere with workpiece clamping or tooling clearance. Machinists, tool and die makers, and precision fabricators install this bushing in drill jigs to maintain consistent hole location across repeated operations.

This bushing is suited for production drilling, reaming, and related hole-making operations in both shop and manufacturing environments. Its press fit installation method makes it a permanent fixture component, appropriate for applications where the bushing will not require routine replacement. The steel construction holds up to the wear generated by repeated tool passes. It is typically found in drill jig plates used in metalworking, maintenance, and light industrial fabrication settings where tight positional tolerances are required.

Key Features

• Industry bushing code P press fit headless design for flush, permanent installation
• Inside diameter of 0.052 inches (wire size 55) with tolerance of +0.0001 to +0.0004 inches for precise drill guidance
• Body outside diameter of 3/16 inches and overall length of 1/2 inch
• Steel construction for wear resistance in repetitive drilling operations
• Non-renewable design intended for permanent jig plate mounting
• Non-counterbored body for straightforward press fit seating

Compatibility

Designed as an OEM-style replacement or new-installation component for drill jig plates and fixtures requiring a headless press fit bushing with a 3/16-inch outside diameter and 0.052-inch inside diameter bore.

Installation Notes

Press fit bushings are installed by qualified machinists or toolmakers using an arbor press or hydraulic press to drive the bushing flush into a precision-bored jig plate hole. The receiving hole in the jig plate must be machined to the correct interference fit specification to achieve proper retention. Always ensure the bushing is properly aligned before applying press force to avoid galling or misalignment. Remove any chips or debris from the bore before installation.