Boneham P6422MM Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P6422MM is a headless, press fit drill bushing machined from steel for use in jig and fixture applications requiring precise hole guidance. Carrying bushing industry code P, this bushing features an inside diameter of 21/32 inches with a tolerance of +0.0001 to +0.0005 inches, a body outside diameter of 1 inch, and an overall length of 1-3/8 inches. The press fit design locks the bushing permanently into a jig plate without the use of a retaining ring or lock notch. Machinists, toolmakers, and fixture builders install this bushing where a fixed, non-renewable liner is appropriate for production or inspection drilling operations.

This bushing is suited for use in hardened drill jig plates and tooling fixtures in manufacturing and metalworking environments. The headless body profile sits flush with or below the jig plate surface, making it appropriate for close-tolerance work where a flanged head would interfere with workpiece contact or fixture clamping. It is installed as a permanent bushing directly in the jig body, not in a liner bushing. Typical applications include production drilling, reaming guidance, and precision hole location in both light and heavy-duty fixture assemblies.

Key Features

• Press fit installation method for permanent, non-renewable fixture mounting
• Headless body profile for flush or sub-flush seating in jig plates
• Inside diameter of 21/32 inches with tight tolerance of +0.0001 to +0.0005 inches for consistent tool guidance
• Body outside diameter of 1 inch and overall length of 1-3/8 inches
• Bushing industry code P for standard interchangeability in jig design
• Steel construction for durability in repetitive drilling applications

Compatibility

Designed as an OEM-style replacement or direct-fit installation for P-series press fit headless drill bushing applications conforming to standard bushing industry code P specifications.

Installation Notes

Press fit bushings are installed by a toolmaker or machinist using an arbor press or hydraulic press; hand-driving is not recommended as it risks misalignment or bore damage. The receiving bore in the jig plate must be machined to the correct press fit tolerance before installation. Once pressed in, this bushing is not intended for removal or reuse. Verify inside diameter and OAL against tool and fixture requirements before pressing in place.