Boneham H204DV Press Fit Headed Drill Bushing Steel

Product Description

The BONEHAM H204DV is a Type H press fit headed drill bushing manufactured from hardened steel for use in jig and fixture applications requiring precise hole location during drilling operations. With an inside diameter of 0.125 inches and a body outside diameter of 0.3125 inches, this bushing is designed to guide drill bits with consistent accuracy. The head outside diameter measures 27/64 inches with a head height of 0.125 inches, and the length under head is 0.25 inches. Hardness is rated at 60 to 65 HRC, making it suitable for high-repetition drilling in production environments. Installation does not require a locking mechanism, as the press fit design holds the bushing securely in the drill plate. Licensed machinists and toolmakers typically install this component during jig fabrication or fixture maintenance.

This bushing is intended for use in drill jigs and machining fixtures where repeatable hole positioning is required. The headed design seats against the top face of the drill plate, providing a positive stop during installation. It is commonly used in metalworking shops, manufacturing facilities, and tool rooms handling close-tolerance work. The press fit installation method makes it suitable for permanent or semi-permanent fixture setups where the bushing will not require routine replacement. The inside diameter tolerance of plus 0.0001 to plus 0.0004 inches ensures compatibility with standard drill bit sizing.

Key Features

• Type H headed design seats flush against drill plate surface for positive location
• Press fit installation method — no retaining ring or locking collar required
• Hardened steel construction rated 60 to 65 HRC for long service life under repeated drilling cycles
• Inside diameter tolerance of plus 0.0001 to plus 0.0004 inches for precise drill guidance
• Non-renewable design for permanent fixture installations
• Meets ANSI standards for drill bushing geometry and tolerances

Compatibility

Designed as an OEM-style press fit headed drill bushing for use in standard drill jig plates and machining fixtures requiring a 0.3125-inch body bore with headed seating.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press to drive the bushing into a properly sized and finished bore in the drill plate. The mating bore in the fixture should be machined to the appropriate press fit tolerance before installation. Once pressed in, the bushing is not intended for removal without potential damage to the fixture plate. Ensure the fixture is secured and the bore is free of burrs and debris prior to pressing the bushing into place.