Boneham P6428LU Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P6428LU is a headless press fit drill bushing manufactured from steel and designed to guide cutting tools with precision during drilling operations. It carries an inside diameter of 35/64 inches, a body outside diameter of 1 inch, and an overall length of 1-3/4 inches. The bushing meets ANSI standards and achieves a hardness rating of 60 to 65 HRC, providing the wear resistance required in high-cycle production drilling environments. The press fit installation method allows the bushing to be seated directly into a drill jig plate without a retaining collar. Machinists and tooling technicians are the primary installers.

This bushing is suited for use in drill jigs and fixture plates in both production machining and maintenance repair operations. It fits applications where a flush, headless profile is required to avoid interference with workpiece surfaces or mating components. The P industry code designation identifies it within the ANSI standard press fit headless bushing series, making it straightforward to cross-reference with other tooling systems. Typical use cases include multi-spindle drilling setups and close-tolerance hole location work in metal fabrication and manufacturing environments.

Key Features

• Press fit installation — seats directly into drill jig plate without collar hardware
• Headless design provides a flush profile, eliminating interference with workpiece surfaces
• Hardness of 60 to 65 HRC for extended wear life in high-cycle drilling applications
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures consistent tool guidance
• Meets ANSI standards for interchangeability within the P-series bushing system
• Non-renewable design — intended as a fixed, permanent jig component

Compatibility

Designed as an ANSI-standard press fit headless drill bushing in the P-series, compatible with drill jig plates bored to accept a 1-inch outside diameter press fit bushing.

Installation Notes

Installation is performed by a machinist or tooling technician using an arbor press or hydraulic press to seat the bushing into a properly sized jig plate bore. The receiving bore should be machined to the appropriate interference fit tolerance per ANSI specifications before pressing. Never drive the bushing in with an impact hammer, as this can distort the inside diameter and compromise tool guidance accuracy. Once pressed in, the bushing is not intended for removal or reuse.