Boneham PT1212BJ Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT1212BJ is a press fit headless drill bushing designed to guide cutting tools with precision during drilling operations. Manufactured from steel, this bushing carries industry code P and fits directly into a prepared hole without a flange or head, keeping the bushing flush with the workpiece or jig plate surface. The inside diameter is 0.052 inches, corresponding to a number 55 wire gauge drill, with a tight ID tolerance of plus 0.0001 to plus 0.0004 inches. The body outside diameter is 3/16 inches and the overall length is 3/4 inches. Machinists, tool and die makers, and fixture builders install this type of bushing into drill jigs to maintain hole location accuracy across repeated operations.

This bushing is suited for precision drill jig applications in manufacturing, fabrication, and tooling environments. The headless profile makes it appropriate for installations where a recessed or flush-mount configuration is required and where a flanged head would interfere with workpiece seating. The counterbored design accommodates the press fit installation method. It is a fixed, non-renewable bushing, meaning it is intended to remain permanently installed in the jig body rather than be swapped out during production runs.

Key Features

• Press fit installation method for permanent, stable seating in jig plates
• Headless design provides a flush profile suitable for recessed mounting
• Inside diameter of 0.052 inches matches a number 55 wire gauge drill
• ID tolerance of plus 0.0001 to plus 0.0004 inches for close-tolerance tool guidance
• Steel construction for durability under repeated drilling cycles
• Counterbored body supports proper press fit engagement

Compatibility

Designed as an OEM-style replacement or new-installation drill bushing for precision drill jigs requiring a press fit, headless, industry code P bushing with a 0.052 inch inside diameter and 3/16 inch outside diameter.

Installation Notes

Press fit drill bushings are typically installed by a machinist or toolmaker using an arbor press to seat the bushing flush into a prepared jig plate hole. Power down all associated machinery before performing any jig maintenance or bushing replacement. Verify the jig plate bore diameter matches the bushing outside diameter tolerance before pressing to avoid galling or improper fit. Once pressed in, this is a non-renewable bushing and is not intended for removal and reuse.