Boneham H205FT Press Fit Headed Drill Bushing 3/16 in Id

Product Description

The BONEHAM H205FT is a Type H press fit headed drill bushing manufactured from hardened steel for use in precision drilling and machining operations. It features a 3/16-inch inside diameter and a 5/16-inch body outside diameter, with a length under head of 5/16 inches. The head outside diameter measures 27/64 inches and the head height is 1/8 inch. Hardness is rated at 60 to 65 HRC, and the inside diameter tolerance is held to +0.0001 to +0.0004 inches, making it suitable for close-tolerance drill guidance applications. Machinists and tooling technicians install these bushings into jig plates and fixture bodies.

This bushing is intended for use in drill jigs and machining fixtures where a permanent, press-fit installation is required. The headed design seats against the jig plate surface, providing a positive stop and preventing axial movement under drilling loads. It is a non-renewable bushing, meaning it is pressed in place and not designed for routine field replacement. Typical applications include production drilling, reaming, and similar guided-tool operations in metalworking environments where repeatable hole location is critical.

Key Features

• Press fit installation method for permanent, secure seating in jig plate bores
• Headed design provides a positive axial stop against the jig plate face
• Steel construction hardened to 60 to 65 HRC for wear resistance under repeated drill passes
• Inside diameter tolerance of +0.0001 to +0.0004 inches supports close-tolerance drill guidance
• ANSI standard compliant construction
• Non-renewable design for permanent fixture installations

Compatibility

Designed as a standard ANSI Type H press fit headed drill bushing for use in drill jigs and machining fixtures requiring a permanent bushing installation with a 3/16-inch drill or reamer guidance bore.

Installation Notes

Installation is performed by machinists or tooling technicians using an arbor press or hydraulic press to drive the bushing into a properly sized jig plate bore. The mating bore in the jig plate must be machined to the appropriate press fit tolerance before installation. Once pressed in, this bushing is not intended for removal or reuse. Follow standard shop safety practices and secure workpieces properly before pressing.