Boneham P485LK Press Fit Headless Drill Bushing

Product Description

The BONEHAM P485LK is a press fit headless drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Built to ANSI standards, this bushing features a 0.5 inch inside diameter and a 0.75 inch outside diameter, with an overall length of 0.3125 inches. Manufactured from steel hardened to 60 to 65 HRC, it delivers the wear resistance required for accurate, repeatable hole placement in production and maintenance machining environments. The headless design allows flush seating in jig plates without a protruding flange. The inside diameter tolerance of +0.0001 to +0.0005 inches ensures close control over tool guidance.

This bushing suits tool and die shops, maintenance departments, and production machining applications where a permanent, non-renewable press fit bushing is appropriate. It is driven directly into a prepared hole in a drill jig or fixture plate and is intended for installations where the bushing position is fixed and does not require routine replacement. Industry code P identifies its dimensional series under ANSI drill bushing standards.

Key Features

• Press fit installation method for permanent, fixed positioning in jig plates
• Headless design seats flush with the jig plate surface
• Steel construction hardened to 60 to 65 HRC for long service life
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Conforms to ANSI drill bushing standards, industry code P
• Non-renewable design suited to fixed, long-run jig setups

Compatibility

Designed as a permanent press fit replacement or new-install headless drill bushing conforming to ANSI P-series dimensional standards for use in standard drill jig and fixture plates.

Installation Notes

Installation is performed by machinists or tool and die technicians using an arbor press or hydraulic press to seat the bushing flush into a properly sized and finished jig plate bore. The receiving hole must be machined to the correct interference fit tolerance to achieve proper retention. Ensure the workpiece and jig are secured before pressing. Because this is a non-renewable bushing, removal typically damages either the bushing or the jig plate bore.