Boneham P325ID Headless Drill Bushing 0.295 in Id Steel

Product Description

The BONEHAM P325ID is a press fit headless drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Manufactured from steel and hardened to 60 to 65 HRC, this bushing provides consistent hole location and extended wear resistance in production tooling applications. The headless design allows the bushing to sit flush within a jig plate without a protruding flange, making it well suited for close-tolerance work where head clearance is a concern. It carries an inside diameter of 0.295 inches, a body outside diameter of 1/2 inch, and an overall length of 5/16 inch. Installation is accomplished by pressing the bushing directly into a mating hole in the drill jig. Machinists, toolmakers, and CNC setup technicians are the primary installers.

This bushing is used in drill jig assemblies across general metalworking, aerospace fabrication, and precision machining environments. The P industry code designation identifies it within the ANSI standardized bushing system, allowing straightforward cross-referencing with other ANSI-compliant jig components. It is appropriate for both light-production and high-volume repeat-drilling applications where repeatable hole placement is critical. The press fit installation method makes it a fixed, non-renewable bushing — once installed it is not intended to be removed and reused.

Key Features

• Hardened steel construction at 60 to 65 HRC for wear resistance and long service life
• Headless design sits flush with jig plate surface for clearance-critical applications
• Inside diameter tolerance of +0.0001 to +0.0005 inch ensures consistent tool guidance
• Press fit installation method for permanent, rigid seating in jig bodies
• ANSI-compliant with P industry code designation for straightforward system integration
• Inside diameter accepts M letter drill or 0.2950 inch decimal tooling

Compatibility

Designed as an ANSI-standard press fit headless drill bushing for use in drill jig plates and tooling fixtures requiring a 1/2 inch outside diameter bushing bore and 0.295 inch inside diameter tool guidance.

Installation Notes

Installation is performed by toolmakers or machinist personnel using an arbor press or hydraulic press to seat the bushing into a properly toleranced hole in the jig plate. Verify the receiving bore diameter matches the bushing outside diameter specification before pressing to avoid cracking the jig body or distorting the bushing. Because this is a non-renewable press fit bushing, it is not designed for removal and reinstallation. Consult applicable ANSI tooling standards for jig plate material and bushing fit recommendations.