Boneham H4022KK Press Fit Headed Drill Bushing

Product Description

The BONEHAM H4022KK is a Type H press fit headed drill bushing designed to guide drill bits with precision in jig and fixture applications. It features a 27/64-inch inside diameter and a 5/8-inch body outside diameter, with a length under the head of 1-3/8 inches. Constructed from steel, this bushing is pressed directly into a drill jig plate and held in place by its head, eliminating the need for a locking mechanism. Machinists and tooling specialists install this component when a permanent, non-renewable bushing solution is required for production or repetitive drilling operations.

This bushing is suited for use in drill jigs where the bushing position is fixed and not expected to be swapped out during the life of the tooling. It is appropriate for light to medium production environments in machine shops, fabrication facilities, and tool rooms. The press fit installation method makes it well suited to applications where bushing migration or rotation under load must be prevented without additional hardware.

Key Features

• Type H headed design retains the bushing in the jig plate and prevents axial pullout during drilling
• Press fit installation method provides a secure, non-renewable mount requiring no lock rings or screws
• 27/64-inch inside diameter with a tight tolerance of plus 0.0001 to plus 0.0005 inches for accurate drill guidance
• 5/8-inch body outside diameter with a 51/64-inch head outside diameter for positive seating on the jig plate surface
• 1-3/8-inch length under the head accommodates moderate jig plate thickness
• Steel construction provides durability and wear resistance under repeated drilling cycles

Compatibility

Designed as an OEM-style replacement or new-installation drill bushing for steel drill jigs and fixtures requiring a Type H press fit headed bushing with a 27/64-inch inside diameter.

Installation Notes

Installation is performed by machinists or tooling technicians using an arbor press or hydraulic press to drive the bushing into the prepared bore of the jig plate. The receiving bore must be machined to the correct tolerance to achieve proper press fit interference. Ensure the jig plate is secured and the bushing is aligned square to the bore before applying press force. Once installed, this bushing is not designed for removal and replacement during normal service life.