Boneham AM00000484 Press Fit Headless Drill Bushing

Product Description

The BONEHAM AM00000484 is a press fit headless drill bushing manufactured from hardened steel, designed to guide drill bits with precision in production drilling and machining operations. Using industry code PM, this bushing is pressed directly into a jig plate without a locking head, providing a flush-mount profile suited to applications where clearance above the work surface is limited. The bore is held to a tight tolerance of +0.007/+0.020 mm and the steel body is hardened to 60 to 65 HRC, delivering the wear resistance required for repetitive drilling cycles. Machinists and tooling technicians are the primary installers.

This bushing is used in drill jig fixtures across metalworking, fabrication, and precision machining environments. The headless press fit design is common in tooling plates where multiple bushings must sit flush and a renewable liner is not required. The PM industry code designates a standard press fit, non-renewable bushing per ANSI tooling standards. It is appropriate for both light production and high-volume repetitive drilling setups where the bushing is intended to remain fixed in the plate for the life of the tooling.

Key Features

• Press fit installation method for secure, permanent seating in the jig plate
• Headless PM-code body provides a flush, low-profile mount with no protruding flange
• Inside diameter of 20.5 mm held to +0.007/+0.020 mm tolerance for consistent drill guidance
• Body outside diameter of 30 mm with an overall bushing length of 45 mm
• Steel construction hardened to 60 to 65 HRC for extended wear life under repetitive use
• Non-renewable design; meets ANSI tooling standards

Compatibility

Designed as an ANSI-standard PM-code press fit headless drill bushing for use in drill jig plates and tooling fixtures requiring a permanent, flush-mount bushing with a 20.5 mm inside diameter.

Installation Notes

Installation is performed by tooling technicians or machinists using an arbor press or hydraulic press to seat the bushing into a properly reamed jig plate bore. The plate bore should be finished to the appropriate interference fit tolerance before pressing to avoid cracking or distortion of the bushing. Never drive the bushing with a hammer directly on the bore face. Once pressed, the bushing is not intended to be removed or replaced.