Boneham H5622MK Press Fit Headed Drill Bushing

Product Description

The BONEHAM H5622MK is a Type H press fit headed drill bushing used to guide drill bits and cutting tools with precision in jig and fixture applications. The bushing features a 41/64 inch inside diameter and a 7/8 inch body outside diameter, with a 1-3/8 inch length under the head. Constructed from steel, it is designed to be pressed permanently into a drill jig plate without the need for a locking mechanism. The inside diameter tolerance of +0.0001 to +0.0005 inch ensures consistent, repeatable hole location across production runs. Machinists, toolmakers, and fixture builders install this type of bushing as part of jig assembly.

The H5622MK is suited for use in drill jigs and fixturing where a permanent, non-renewable bushing is required. The headed design provides a positive seating surface against the jig plate face, helping control depth and alignment during drilling operations. This bushing is appropriate for light to medium production environments where the fixture is dedicated to a single hole size and tooling changeover is not required. It is installed by press fitting into a prepared bore in a hardened or unhardened jig plate.

Key Features

• Type H industry-standard press fit headed design for permanent installation
• 41/64 inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inch for accurate tool guidance
• 7/8 inch body outside diameter and 1-3/8 inch length under head
• Head outside diameter of 1-7/64 inch with a 1/4 inch head height for positive seating
• Steel construction for durability and wear resistance in production drilling applications
• Non-renewable design — intended as a permanent bushing, not a slip-renewable style

Compatibility

Designed as an OEM-style replacement or original component for drill jigs and fixtures requiring a Type H press fit headed bushing with a 41/64 inch bore.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press to seat the bushing flush into a precision-bored hole in the jig plate. The receiving bore should be machined to the appropriate press fit tolerance to match the bushing outside diameter before installation. Do not use a hammer to drive the bushing, as this can damage the head or distort the bore. Once installed, this bushing is not intended to be removed and replaced in service.