Boneham P325FT Press Fit Headless Drill Bushing

Product Description

The BONEHAM P325FT is a press fit headless drill bushing designed to guide drill bits with precision in jig and fixture applications. It features a 3/16-inch inside diameter, a 1/2-inch body outside diameter, and a 5/16-inch overall length. Constructed from hardened steel with a surface hardness of 60 to 65 HRC, this bushing resists wear under repeated drilling cycles. The headless design allows the bushing to seat flush within a bored hole, keeping the jig surface clear. It is a non-renewable type, intended for permanent press fit installation. Machinists and toolmakers rely on this style of bushing for consistent hole location across production runs.

This bushing is suited for use in drill jigs, fixture plates, and tooling assemblies in machine shops, fabrication environments, and manufacturing facilities. The P industry code designation identifies it as a standard press fit type per ANSI specifications. It is appropriate for applications where a fixed, permanent guide is needed and the bushing does not require routine field replacement. Typical use cases include production drilling operations where repeatable hole positioning is critical.

Key Features

• Press fit installation method for permanent, rigid seating in the jig body
• Headless design allows flush mounting with no protrusion above the jig surface
• Hardened steel construction with 60 to 65 HRC for extended wear resistance
• Inside diameter tolerance of +0.0001 to +0.0004 inches ensures precise drill guidance
• ANSI-compliant dimensions for compatibility with standard tooling practices
• Non-renewable type - suited for permanent fixture installations

Compatibility

Designed as an ANSI-standard press fit headless drill bushing for use in machined jig and fixture assemblies requiring a permanent bushing installation.

Installation Notes

Installation is performed by pressing the bushing into a precision-bored hole in the jig plate using an arbor press or hydraulic press. Ensure the receiving bore is machined to the proper interference fit tolerance before pressing the bushing into place. Do not hammer the bushing directly, as this can distort the inside diameter or damage the bore. This is a permanent installation; the bushing is not designed for removal or field replacement after seating.