Boneham P408IW Press Fit Headless Drill Bushing

Product Description

The BONEHAM P408IW is a headless press fit drill bushing designed to guide drill bits and other cutting tools with precision in jig and fixture applications. Manufactured from steel, this bushing features a 0.332 inch inside diameter and a 5/8 inch outside diameter, with an overall length of 1/2 inch. The inside diameter holds a tolerance of +0.0001 to +0.0005 inches, ensuring consistent hole location and accurate repeatability across production runs. Machinists, tool and die makers, and general metalworking shops use this type of bushing where a permanent, non-renewable installation is required.

This bushing is suited for press fit installation into hardened or unhardened jig plates. The headless design allows the bushing to sit flush with the plate surface, making it appropriate for applications where clearance above the workpiece is limited or where a smooth top surface is required. Industry code P classifies it within the standard headless press fit bushing series. It is commonly installed in drill jigs used in production machining, assembly fixtures, and general metalworking environments where hole location repeatability is critical.

Key Features

• Headless design sits flush with jig plate surface for low-clearance applications
• Press fit installation method provides a permanent, non-renewable mount
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures precise tool guidance
• Steel construction for durability in production machining environments
• Industry code P series for compatibility with standard jig bushing systems
• Compact 1/2 inch overall length suits thin jig plate configurations

Compatibility

Designed as a standard P-series headless press fit drill bushing for use in drill jigs and machining fixtures requiring a 5/8 inch outside diameter press fit hole and a 0.332 inch bore.

Installation Notes

Installation is performed by machinists or tool and die makers using an arbor press or hydraulic press to seat the bushing into a properly sized hole in the jig plate. The mating hole in the jig plate must be machined to the appropriate interference fit tolerance to achieve a secure press fit. Power down all associated machinery before installing or removing bushings from active fixtures. Do not hammer the bushing directly without a driver to avoid damaging the bore or the seating surface.