Boneham P486KE Press Fit Headless Drill Bushing

Product Description

The BONEHAM P486KE is a press fit headless drill bushing designed to guide drill bits and other cutting tools with precision in metalworking and machining applications. With an inside diameter of 0.404 inches, an outside diameter of 0.75 inches, and an overall length of 0.375 inches, this bushing installs directly into a jig plate without fasteners or a head flange. Constructed from steel, it provides the wear resistance and dimensional stability required for repeated drilling cycles in production and maintenance environments.

This bushing is used in drill jig fixtures where a headless, flush-mount installation is required. The headless design suits applications where a protruding flange would interfere with workpiece clearance or fixturing. It is a non-renewable (permanent) style bushing, meaning it is pressed into the jig plate and stays in place for the life of the fixture. Machinists, tool-and-die makers, and precision fabricators install this type of bushing during jig construction or when replacing worn liners.

Key Features

• Press fit installation method — no fasteners or locking mechanisms required
• Headless design allows flush or sub-flush seating in the jig plate
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures consistent tool guidance
• Steel construction provides hardness and wear resistance for high-cycle drilling
• Non-renewable (permanent) bushing style suited for fixed jig applications
• Industry code P for straightforward cross-reference with standard drill bushing catalogs

Compatibility

Designed as an OEM-style replacement or new-installation press fit headless drill bushing for standard drill jig fixtures requiring a 0.75-inch outside diameter press fit bore and a 0.404-inch inside diameter tool guide.

Installation Notes

Installation is performed by machinists or tool makers using an arbor press or hydraulic press to seat the bushing flush into a prepared jig plate bore. Ensure the receiving bore is machined to the correct interference fit tolerance before pressing to avoid bushing distortion or bore damage. Do not hammer the bushing in directly without a proper driver to prevent dimensional changes to the inside diameter.