Boneham H1622DT Press Fit Headed Drill Bushing

Product Description

The BONEHAM H1622DT is a Type H press fit headed drill bushing designed to guide drill bits with precision in jig and fixture applications. It features a 0.12 inch (No. 31 wire gauge) inside diameter and a 0.25 inch body outside diameter, with a 1.375 inch length under the head. The inside diameter tolerance is held to +0.0001 to +0.0004 inches for tight, repeatable guidance. Made from steel, this bushing is pressed permanently into a drill jig plate and is not renewable. It is installed and used by machinists, toolmakers, and production engineers working with drill jigs and fixtures requiring consistent hole location accuracy.

This bushing is suited for production drilling operations where a fixed, non-renewable guide is acceptable and where consistent drill entry location is critical. The headed design seats flush against the jig plate surface, preventing the bushing from being pushed through the plate under drilling load. The counterbored design accommodates the head recess in the jig body. Typical applications include metal fabrication shops, machine shops, and toolroom environments running repetitive drilling cycles on steel or other structural materials.

Key Features

• Type H press fit design installs permanently into jig plate without a locking collar
• 0.12 inch (No. 31 wire gauge) inside diameter with +0.0001 to +0.0004 inch tolerance for precise drill guidance
• 0.25 inch body outside diameter and 1.375 inch length under head for jig plate compatibility
• Head outside diameter of 0.359 inches (23/64) with a 0.094 inch (3/32) head height
• Counterbored seat accepts the head recess in the mating jig component
• Steel construction for wear resistance in repetitive drilling applications

Compatibility

Designed as an OEM-style replacement or original-installation press fit headed drill bushing for standard Type H drill jig fixtures requiring a 0.25 inch body bore and 0.12 inch drill guide diameter.

Installation Notes

Press fit bushings are installed by a machinist or toolmaker using an arbor press or similar controlled pressing equipment. The jig plate bore must be machined to the correct interference fit tolerance before installation. Once pressed in, this bushing is not designed to be removed and replaced. Verify jig plate thickness and counterbore depth against the bushing dimensions before pressing to avoid damage to the jig or bushing.