Boneham CB00001242 Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM CB00001242 is a Type H press fit headed drill bushing used to guide drill bits with precision in jig and fixture applications. It features a 0.041 inch inside diameter (wire gauge #59) and a 5/32 inch body outside diameter, with a 3/8 inch length under the head. The head outside diameter measures 1/4 inch and the head height is 3/32 inch. Constructed from steel, this bushing is pressed directly into a drill jig plate and held in place without a locking mechanism. It is a non-renewable, fixed installation component intended for production or repetitive drilling operations where consistent hole location is critical.

This bushing is suited for use in drill jigs where a permanent, press-in guide is required. The headed design seats flush against the jig plate surface, controlling the depth and lateral position of the guide bore. Typical applications include metal fabrication shops, tool and die operations, and precision machining environments where repeatable hole placement is required across multiple workpieces. The inside diameter tolerance of +0.0001 to +0.0004 inches supports close-tolerance drilling with small-diameter bits.

Key Features

• Type H press fit installation — no liner or locking collar required
• Inside diameter: 0.041 inches (wire gauge #59) with tolerance of +0.0001 to +0.0004 inches
• Body outside diameter: 5/32 inches; head outside diameter: 1/4 inch
• Length under head: 3/8 inches; head height: 3/32 inches
• Steel construction for durability in repetitive drilling applications
• Non-renewable fixed design — intended for permanent jig installation

Compatibility

Designed as a standard Type H press fit headed drill bushing for use in drill jig plates requiring a permanent guide bushing with a headed flange seating surface.

Installation Notes

This bushing is installed by pressing it into a prepared jig plate bore using an arbor press or appropriate pressing fixture — do not hammer directly on the head. Ensure the mating bore in the jig plate is machined to the proper interference fit tolerance before installation. Once pressed in, the bushing is not intended to be removed or replaced. Installation is typically performed by toolmakers or machining professionals during jig fabrication or maintenance.