Boneham PT246GH Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT246GH is a press fit headless drill bushing designed to guide drill bits and cutting tools with precision in metal fabrication and machining applications. This bushing carries an industry code of P and features a 0.2055-inch inside diameter (wire size number 5) with a 3/8-inch outside diameter and a 3/8-inch overall length. Manufactured from steel hardened to 60 to 65 HRC, it delivers the wear resistance needed for accurate, repeatable hole location across production runs. The inside diameter is held to a tight tolerance of plus 0.0001 to plus 0.0004 inches, keeping drill wander to a minimum. Machinists and tooling technicians install this bushing as a fixed, non-renewable guide in drill jigs and fixtures.

This bushing is suited for use in drill jig plates and tooling fixtures across general metalworking, maintenance shops, and precision machining environments. Its headless design allows it to sit flush within a jig plate, making it appropriate for applications where a protruding head would interfere with the workpiece or clamping. It is installed without a locking mechanism, pressing directly into a prepared hole in the jig body. The ANSI-compliant dimensions make it a standard replacement or original-build component for shops working to established tooling specifications.

Key Features

• Press fit installation method — no locking collar or set screw required
• Headless design sits flush with the jig plate surface
• Inside diameter tolerance of plus 0.0001 to plus 0.0004 inches for precise drill guidance
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Meets ANSI standards for drill bushing dimensions and fitment
• Non-renewable fixed bushing suitable for long-run jig applications

Compatibility

Designed as a standard ANSI P-series press fit headless drill bushing for use in drill jigs and tooling fixtures requiring a 3/8-inch outside diameter and a 0.2055-inch inside diameter.

Installation Notes

Installation is typically performed by a machinist or tooling technician using an arbor press or hydraulic press to seat the bushing flush into a precision-bored jig plate hole. The receiving hole must be bored to the correct interference fit dimension to ensure the bushing is held securely without damage to the bushing bore. Always press the bushing in squarely to avoid galling or misalignment. Once pressed in, this bushing is not designed for removal and replacement during normal service.