Boneham H204EN Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM H204EN is a Type H press fit headed drill bushing manufactured from steel. It is designed to guide drill bits and cutting tools with precision in jig and fixture applications. The bushing features an inside diameter of 0.1495 inches, a body outside diameter of 5/16 inch, and a length under head of 1/4 inch. The headed design provides a positive stop against the jig plate surface, maintaining consistent hole location and depth across repeated operations. This part is installed permanently into a jig plate and is not intended for removal after pressing in. Machinists, toolmakers, and fixture builders are the primary users of this component.

The H204EN is suited for production and toolroom environments where accurate hole guidance is required. Its press fit installation method means it seats tightly into a prepared hole in a drill jig plate without requiring locking screws or additional hardware. The Type H designation indicates a standard headed style commonly used in drill jig applications where the head seats flush against or proud of the jig surface. This bushing accommodates a Number 25 wire gauge drill bit and is a non-renewable, fixed installation type.

Key Features

• Type H headed design provides a positive stop against the jig plate face
• Inside diameter of 0.1495 inches accepts a Number 25 wire gauge drill bit
• Press fit installation for permanent, rigid seating in jig plate
• Steel construction for durability in repetitive drilling operations
• Inside diameter tolerance of plus 0.0001 to plus 0.0004 inches for consistent tool guidance
• Non-renewable design — intended as a permanent fixture component

Compatibility

Designed as an OEM-style replacement or new-installation drill bushing for standard drill jig plates requiring a Type H press fit headed bushing with a 0.1495 inch inside diameter and a 5/16 inch body outside diameter.

Installation Notes

Installation is typically performed by a machinist or toolmaker using an arbor press to drive the bushing into a precision-reamed hole in the jig plate. The receiving hole in the jig plate must be machined to the correct press fit tolerance to ensure proper retention. Do not strike the bushing directly with a hammer, as this can damage the head or distort the bore. Verify inside diameter clearance with the intended drill bit before pressing the bushing into service.