Boneham CB00001342 Type H Headed Drill Bushing Steel

Product Description

The BONEHAM CB00001342 is a Type H press fit headed drill bushing designed to guide drill bits with precision during machining and fabrication operations. Constructed from steel with a hardness rating of 60 to 65 HRC, this bushing resists wear and maintains tight tolerances through repeated use. It features a 0.113 inch inside diameter (wire gauge size No. 33), a 1/4 inch body outside diameter, and a 1/2 inch length under the head. The inside diameter tolerance is held to +0.0001 to +0.0004 inches, making it suitable for close-tolerance drilling applications. Machinists, tool and die makers, and fabricators install this type of bushing in drill jigs and fixtures.

This bushing is intended for use in drill jig plates and fixture assemblies where a permanent, non-renewable bushing is required. The headed design provides a positive stop against the jig plate surface, preventing the bushing from being pushed through during drilling operations. It is well suited for production environments where consistent hole location is critical across multiple workpieces. The press fit installation method locks the bushing securely in the jig body without the need for additional fasteners or locking mechanisms.

Key Features

• Type H headed press fit configuration provides a positive stop against the jig plate surface
• 0.113 inch inside diameter (No. 33 wire gauge) with a tight tolerance of +0.0001 to +0.0004 inches
• 60 to 65 HRC steel construction for extended wear life in high-cycle drilling applications
• 1/2 inch length under head and 23/64 inch head outside diameter for secure seating in standard jig plates
• Non-renewable design for permanent installation in fixed drill jig assemblies
• Manufactured to ANSI standards for dimensional consistency and interchangeability

Compatibility

Designed as an OEM-style replacement or new-installation component for standard drill jig and fixture assemblies requiring a Type H press fit headed bushing per ANSI specifications.

Installation Notes

Installation is performed by qualified machinists or tool makers using an arbor press to drive the bushing flush into the prepared jig plate bore. The receiving hole in the jig plate must be machined to the correct press fit tolerance to ensure the bushing seats without rotation or movement. Do not strike the bushing directly with a hammer, as this may damage the head or distort the bore. Once pressed in, this bushing is not designed for removal or replacement.