Boneham P406JY Press Fit Headless Drill Bushing

Product Description

The BONEHAM P406JY is a headless press fit drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. It carries an industry designation of P and is manufactured from hardened steel, achieving a hardness rating of 60 to 65 HRC. The 25/64 inch inside diameter accepts standard drill shanks, while the 5/8 inch outside diameter provides a secure interference fit in the jig plate. With an overall length of 3/8 inch, this bushing suits applications where a low-profile, flush-mount guide is required. Licensed machinists and tooling technicians install this type of component in drill jigs and fixture plates across production and maintenance environments.

This bushing is suited for use in drill jig fixtures in light to medium manufacturing, tool and die, and general machining applications. Its headless design allows it to sit flush with or below the surface of the jig plate, making it appropriate for close-tolerance work where a headed bushing would interfere with workpiece travel or clamping. The press fit installation method provides a permanent, fixed position in the jig body without requiring additional hardware. It is a non-renewable bushing and is not counterbored.

Key Features

• Headless design for flush installation in drill jig plates
• Press fit installation method - no fasteners or locking collars required
• Hardened steel construction rated 60 to 65 HRC for wear resistance
• Inside diameter tolerance of +0.0001 to +0.0005 inches for consistent tool guidance
• Meets ANSI standards for drill bushing dimensions and tolerances
• Compact 3/8 inch overall length for low-profile jig applications

Compatibility

Designed as an OEM-style replacement or direct installation component for standard drill jig fixtures requiring a P-series headless press fit bushing with a 25/64 inch bore and 5/8 inch outside diameter.

Installation Notes

Press fit bushings are installed by qualified toolmakers or machinists using an arbor press or hydraulic press to achieve the required interference fit. The jig plate bore must be prepared to the correct tolerance to accept the bushing without damage to the bore or the bushing OD. Do not drive the bushing in with a hammer directly on the face, as this can damage the ID tolerance. Once pressed in, this bushing is a permanent installation and is not designed to be removed and replaced in service.