Boneham H266GW Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM H266GW is a Type H press fit headed drill bushing used to guide drill bits and cutting tools with precision in jig and fixture applications. Manufactured from steel with a hardness rating of 60 to 65 HRC, this bushing provides a durable wear surface for repetitive drilling operations. It features an inside diameter of 0.234 inches (Letter size A), a body outside diameter of 13/32 inches, and a length under the head of 3/8 inches. The headed design seats flush against the jig plate surface and prevents the bushing from being pushed through during tool contact. Installation is by press fit, requiring no additional locking hardware. Machinists, tool and die makers, and production drilling operations rely on this type of bushing for consistent hole location.

This bushing is suited for use in drill jigs, fixture plates, and production tooling setups in manufacturing and machining environments. It is a non-renewable type, meaning it is pressed permanently into the jig body and is not designed for quick field replacement. The headed configuration makes it appropriate for applications where the bushing must be retained positively against the top face of the jig plate. It conforms to ANSI standards for headed drill bushings, making it a direct fit for tooling designed to that specification.

Key Features

• Type H headed press fit design seats against the jig plate surface for positive retention
• Inside diameter of 0.234 inches (Letter A) with a tight tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Body outside diameter of 13/32 inches with a head outside diameter of 1/2 inch
• Steel construction hardened to 60 to 65 HRC for long service life in high-cycle drilling
• Head height of 5/32 inches for consistent standoff from the jig plate surface
• Conforms to ANSI standards for interchangeability with standard jig tooling

Compatibility

Designed as an ANSI-standard press fit headed drill bushing for use in drill jigs and fixture plates requiring a Type H bushing with a 0.234 inch inside diameter and 13/32 inch body outside diameter.

Installation Notes

Press fit bushings are installed by machinists or tool makers using an arbor press or hydraulic press to seat the bushing into a precision-bored hole in the jig plate. The bore in the jig plate must be machined to the correct interference fit tolerance to ensure the bushing seats without movement during use. Do not drive the bushing with a hammer directly on the head, as this can damage the head face or distort the bore. Once pressed in, this bushing is not intended for removal and reuse.