Boneham H6412LX Press Fit Headed Drill Bushing 9/16 in

Product Description

The BONEHAM H6412LX is a Type H press fit headed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Machined from steel and hardened to 60 to 65 HRC, this bushing resists wear through repeated drilling cycles. The 9/16 inch (0.5625 inch decimal) inside diameter is held to a close tolerance of +0.0001 to +0.0005 inches, ensuring consistent tool guidance and hole location accuracy. The 1 inch body outside diameter and 3/4 inch length under head allow for solid seating in the jig plate. Licensed machinists, tool and die makers, and production fixture builders are the primary installers.

This bushing is used in drill jig fixtures for production machining environments where repeatable hole location is critical. The headed design seats flush against the jig plate surface, preventing the bushing from being pushed through under axial drilling load. Typical applications include metal fabrication shops, aerospace fixture work, and general manufacturing operations requiring ANSI-compliant tooling bushings. It is a permanent, non-renewable press fit style and is not designed for field removal and replacement.

Key Features

• Type H headed design prevents axial pushthrough under drilling load
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Press fit installation method for permanent, vibration-resistant seating
• ANSI-compliant bushing geometry for standard jig plate compatibility
• Non-renewable fixed bushing — intended for permanent fixture installation

Compatibility

Designed as an ANSI-standard Type H press fit headed drill bushing suitable for use in standard jig plates and fixture assemblies requiring a 1 inch body outside diameter press fit bushing with a 9/16 inch bore.

Installation Notes

Installation is performed by machinists or tool and die makers using an arbor press to drive the bushing into a properly reamed jig plate bore. The jig plate bore must be machined to the correct interference fit tolerance prior to installation to achieve proper retention. Once pressed in, this bushing is not intended for removal without risk of damage to the jig plate. Ensure the mating bore is clean and free of burrs before pressing the bushing into position.