Boneham P5612LK Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P5612LK is a press fit headless drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Built to ANSI standards, this Type P bushing features a 0.5 inch inside diameter and a 0.875 inch outside diameter with an overall length of 0.75 inches. Manufactured from steel and hardened to 60-65 HRC, it provides wear resistance suitable for production drilling fixtures and jig plate applications. The headless design allows the bushing to sit flush with the jig plate surface, making it appropriate where clearance above the plate is restricted. Installation is permanent via press fit, requiring no liner bushing or lock.

This bushing is intended for use in drill jigs and fixture tooling found in machine shops, manufacturing cells, and precision fabrication environments. It is typically installed by toolmakers, fixture builders, or maintenance machinists during jig construction or repair. The Type P industry code designation follows ANSI standards for press fit headless drill bushings, allowing direct cross-reference within standard tooling catalogs. Applications include repetitive-hole drilling operations where positional accuracy and tool guidance are required across production runs.

Key Features

• Press fit installation method — permanent seating without a liner bushing or locking mechanism
• Headless design allows flush mounting with the jig plate surface
• Steel construction hardened to 60-65 HRC for wear resistance in production drilling
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Meets ANSI standards for Type P drill bushings
• Compact 0.75 inch overall length suits shallow jig plate applications

Compatibility

Designed as an ANSI-standard Type P press fit headless drill bushing suitable for use in drill jig fixtures requiring a 0.5 inch bore guidance diameter and a 0.875 inch OD press fit seat.

Installation Notes

Installation is performed by toolmakers or fixture machinists using a controlled arbor press to achieve proper interference fit seating without damaging the bore. The host jig plate bore must be machined to the correct tolerance to accept the 0.875 inch OD before pressing the bushing in place. Because this is a permanent press fit bushing, removal after installation is not intended and may damage the jig plate. Always verify bore alignment and cleanliness before pressing to avoid bushing distortion or misalignment.