Boneham P4822LK Press Fit Headless Drill Bushing

Product Description

The BONEHAM P4822LK is a press fit headless drill bushing designed to guide drill bits and cutting tools with precision in jig and fixture applications. Built to ANSI standards, this bushing features a 0.5-inch inside diameter, a 0.75-inch outside diameter, and an overall length of 1.375 inches. Manufactured from steel and hardened to 60 to 65 HRC, it delivers the wear resistance required for repeated drilling operations in production environments. The headless design allows flush installation within a drill jig plate, and the press fit retention method eliminates the need for locking hardware. Machinists, tool and die makers, and fixture builders are the primary installers of this component.

This bushing is suited for use in drill jigs, fixtures, and tooling plates across metal fabrication, machine shops, and precision manufacturing environments. It is appropriate for both low-volume prototype work and higher-volume production runs where consistent hole location is critical. The Type P industry code designation identifies it as a standard press fit headless bushing, making it straightforward to cross-reference against ANSI-standard tooling drawings and fixture designs.

Key Features

• Inside diameter of 0.5 inches with a tight tolerance of +0.0001 to +0.0005 inches for accurate drill guidance
• Outside diameter of 0.75 inches and overall length of 1.375 inches
• Steel construction hardened to 60 to 65 HRC for long service life under repeated tooling contact
• Headless design enables flush, low-profile installation in drill jig plates
• Press fit installation method — no locking collar or set screw required
• Meets ANSI standards for drill bushing geometry and tolerancing

Compatibility

Designed as an ANSI-standard Type P press fit headless drill bushing suitable for use in drill jigs and fixtures requiring a 0.75-inch diameter mounting bore.

Installation Notes

Installation is typically performed by a machinist or toolmaker using an arbor press to drive the bushing into a precision-bored hole in the jig plate. The mounting bore in the jig plate must be machined to the appropriate tolerance to achieve the correct press fit interference. Always verify hole location and bore diameter before pressing to avoid damage to the bushing or jig plate. No heat or adhesive should be applied unless specified by the fixture design documentation.