Boneham H208EN Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM H208EN is a Type H press fit headed drill bushing designed to guide drill bits and other cutting tools with precision in jig and fixture applications. Manufactured from steel with a hardness rating of 60 to 65 HRC, this bushing delivers consistent bore alignment and long service life under repeated tool passes. The 0.1495 inch inside diameter corresponds to a No. 25 wire gauge drill and is held to a tight tolerance of +0.0001 to +0.0004 inches. The headed design seats flush against the jig plate, preventing axial movement during drilling operations. Machinists, toolmakers, and fixture builders rely on this type of bushing for production drilling setups.

This bushing is suited for use in drill jigs where a permanent, non-renewable guide is required. With a body outside diameter of 5/16 inch, a length under head of 1/2 inch, a head outside diameter of 27/64 inch, and a head height of 1/8 inch, it fits standard jig plate bores machined to accept Type H press fit bushings. It is not counterbored and does not accept a renewable liner. Typical applications include repetitive production drilling in metal fabrication, assembly fixtures, and machine shop tooling.

Key Features

• Type H headed press fit design — resists axial pullout without additional fasteners
• Inside diameter of 0.1495 inches (No. 25 wire gauge) with +0.0001 to +0.0004 inch tolerance for precise tool guidance
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Body outside diameter of 5/16 inches and 1/2 inch length under head for standard jig plate fitment
• Meets ANSI standards for headed drill bushings
• Non-renewable, fixed installation — no liner or lock required

Compatibility

Designed as an OEM-style replacement or direct-fit component for drill jigs and fixtures requiring a Type H press fit headed bushing with a 0.1495 inch inside diameter and 5/16 inch body outside diameter per ANSI specifications.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press to drive the bushing into a precision-reamed bore in the jig plate. Ensure the receiving bore is machined to the correct interference fit tolerance before installation. Do not hammer the bushing directly without a proper driver to avoid damage to the head or bore geometry. Once pressed in, the bushing is considered permanent and is not intended for removal or replacement.