Boneham AM00000669 Drill Bushing Pm 7.4 Inch Id

Product Description

The BONEHAM AM00000669 is a press fit headless drill bushing with an industry code designation of PM, designed to guide drill bits with precision in metalworking and machining operations. The bushing features a 7.4-inch inside diameter and an overall length of 20.00 mm, constructed from solid steel for durability under repeated use. It is installed by pressing directly into a jig plate without a locking collar or head flange, keeping the top surface flush with the workpiece fixture. Machinists and tooling technicians rely on this style of bushing for applications where a clean, unobstructed surface is required.

This drill bushing is suited for use in drill jigs and fixture tooling across general metalworking, manufacturing, and production environments. The headless press fit design is common in production jigs where the bushing is intended to remain permanently in place rather than be swapped between operations. It is appropriate for both short-run and high-volume drilling setups where consistent hole location accuracy is critical.

Key Features

• Press fit installation method seats the bushing flush and permanently in the jig plate
• PM industry bushing code for headless press fit style
• 7.4-inch inside diameter for precise drill guidance
• Steel construction provides wear resistance under repeated drilling cycles
• Overall bushing length of 20.00 mm maintains consistent drill guidance depth
• Non-renewable design suited for permanent fixture installations

Compatibility

Designed as an OEM-style replacement or new-installation drill bushing for use in steel drill jigs and tooling fixtures requiring a PM-code headless press fit bushing with a 7.4-inch inside diameter.

Installation Notes

Installation is performed by tooling technicians or machinists using an arbor press or hydraulic press to seat the bushing flush into the jig plate bore. The jig plate bore must be machined to the correct interference fit tolerance before pressing to ensure proper retention. Do not hammer the bushing in directly, as this can damage the outer diameter surface and compromise fit. Verify the bushing is fully seated and flush before use in drilling operations.