Boneham H324HN Press Fit Headed Drill Bushing

Product Description

The BONEHAM H324HN is a Type H press fit headed drill bushing designed to guide cutting tools with precision in jig and fixture applications. With an inside diameter of 17/64 inches and a body outside diameter of 1/2 inch, this bushing installs permanently into a drill jig by press fitting, requiring no additional locking hardware. The steel construction is hardened to 60-65 HRC, providing long service life under repeated drilling cycles. Machinists, toolmakers, and fixture builders use this component to maintain consistent hole location across production runs.

This bushing is suited for use in drill jigs, fixture plates, and tooling setups where a permanent, non-renewable guide bushing is required. The headed design provides a positive stop against the jig plate surface, controlling the depth at which the bushing seats. It meets ANSI standards and is appropriate for both production and prototype tooling environments in machine shops and manufacturing facilities.

Key Features

• Press fit installation — no locking collar or lock screw required
• Hardened steel body at 60-65 HRC for wear resistance under repeated tool contact
• 17/64 inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches for accurate tool guidance
• Head outside diameter of 39/64 inch provides a positive seating shoulder on the jig plate
• Head height of 7/32 inch and length under head of 1/4 inch for compact fixture integration
• Meets ANSI standards for drill bushing dimensional requirements

Compatibility

Designed as an OEM-style replacement or new-installation component for ANSI-standard Type H press fit headed drill bushing applications in drill jigs and machining fixtures.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press or hydraulic press — hand force alone is not sufficient and may damage the bushing or jig plate bore. The receiving hole in the jig plate must be reamed to the appropriate interference fit tolerance per ANSI standards before installation. Once pressed in, this bushing is not intended for removal or reuse. Always verify the jig plate material and bore finish are within spec before pressing.