Boneham P406JW Press Fit Headless Drill Bushing

Product Description

The BONEHAM P406JW is a press fit headless drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Built to ANSI standards, it features an inside diameter of 0.386 inches (Letter W) and a body outside diameter of 5/8 inches, with an overall length of 3/8 inches. Manufactured from steel hardened to 60 to 65 HRC, this bushing delivers the wear resistance required in high-cycle production and tooling applications. It is installed permanently without a head or locking collar, making it suited for fixtures where a flush or low-profile installation is required. Machinists, toolmakers, and fixture builders are the primary installers.

The P406JW is used in drill jigs and tooling fixtures across manufacturing, machine shops, and production environments. Its headless, press fit design is common in applications where the bushing must sit flush with the fixture plate surface and where tool clearance is limited. The P Industry Code designation identifies the bore and tolerance series, which is consistent with standard ANSI drill bushing conventions. This bushing is sold individually and is appropriate for new fixture builds as well as replacement in existing jig plates.

Key Features

• Press fit installation method — no head or locking hardware required
• Inside diameter of 0.386 inches with a tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Body outside diameter of 5/8 inches and overall length of 3/8 inches
• Steel construction hardened to 60 to 65 HRC for high wear resistance
• Meets ANSI standards for drill bushing geometry and fit
• Non-renewable design intended for permanent fixture installation

Compatibility

Designed as a permanent press fit drill bushing conforming to ANSI standards, suitable for use in standard drill jig fixture plates sized for a 5/8-inch OD bushing bore.

Installation Notes

Press fit bushings are installed by machinists or toolmakers using an arbor press or hydraulic press — never drive them in with a hammer. The fixture plate bore must be machined to the correct interference fit per ANSI specifications before installation. Once pressed in, this bushing is not intended to be removed and replaced. Verify bore alignment and cleanliness before pressing to avoid galling or cracking the fixture plate.