Boneham P404JQ Press Fit Headless Drill Bushing

Product Description

The BONEHAM P404JQ is a press fit headless drill bushing designed to guide drill bits with precision in fixture and jig applications. Built to ANSI standards, it features a 3/8 inch inside diameter, a 5/8 inch body outside diameter, and a 1/4 inch overall length. Constructed from steel and hardened to 60 to 65 HRC, this bushing delivers the wear resistance and dimensional stability required in high-volume drilling operations. The headless design allows for a flush, low-profile installation where overhanging heads would interfere. It is not renewable, making it suited for permanent fixture setups.

This bushing is installed using a press fit method, making it appropriate for tooling plates, drill jigs, and fixture blocks used in metalworking and machining environments. The P industry code designates its standard dimensional series under ANSI specifications. Machinists, toolmakers, and fixture builders working in job shops or production environments will find this part directly applicable to standard jig boring and drill guidance setups.

Key Features

• Press fit installation for secure, permanent seating in tooling plates and jig blocks
• Hardened steel construction rated 60 to 65 HRC for extended wear life
• 3/8 inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches for precise drill guidance
• Headless design provides flush, low-profile installation
• Meets ANSI standards for drill bushing dimensional conformance
• Compact 1/4 inch overall length suits thin fixture plates

Compatibility

Designed as an ANSI P-series press fit headless drill bushing for use in standard jig and fixture tooling applications requiring a 3/8 inch bore and 5/8 inch body outside diameter.

Installation Notes

Installation is performed by a machinist or toolmaker using an arbor press or hydraulic press to seat the bushing flush into a properly toleranced hole in the fixture plate. Power down all associated machinery before installing or removing bushings from active fixtures. Do not hammer the bushing in directly without a driver to avoid damaging the bore or seating surface. Verify hole tolerance in the fixture plate matches press fit requirements before installation.