Boneham CB00001288 Headless Drill Bushing Type P Steel

Product Description

The BONEHAM CB00001288 is a Type P press fit headless drill bushing machined from steel and hardened to 60 to 65 HRC. It features a 0.104 inch (No. 37 wire gauge) inside diameter with a tolerance of +0.0001 to +0.0004 inches, a 0.25 inch body outside diameter, and a 0.75 inch overall length. The counterbored design seats flush with the jig plate surface, providing accurate drill guidance without a protruding head. Machinists and tool-and-die technicians install this bushing into drill jigs to maintain consistent hole location across repeated operations.

This bushing is suited for production drilling applications where precise hole positioning is required in machine shops, fabrication facilities, and tooling departments. The headless profile makes it appropriate for jig plates where head clearance is limited or where a flush surface is required. It installs by press fit directly into a prepared reamed hole in the jig body and is not intended to be removed and replaced during service.

Key Features

• Type P press fit installation — no set screws or locking collars required
• Headless design seats flush with jig plate surface for clearance-sensitive layouts
• Hardened steel construction at 60 to 65 HRC for wear resistance under repeated drill passes
• Inside diameter tolerance of +0.0001 to +0.0004 inches for consistent drill guidance
• Counterbored for positive seating in the jig plate
• Meets ANSI standards for drill bushing geometry and dimensional conformance

Compatibility

Designed as an OEM-style replacement or new-installation drill bushing for steel jig plates requiring a Type P press fit headless bushing with a 0.104 inch inside diameter and 0.25 inch outside diameter per ANSI standards.

Installation Notes

Installation is performed by machinists or toolmakers using a hydraulic or arbor press to seat the bushing into a precisely reamed hole in the jig plate. The receiving hole in the jig must be reamed to the appropriate interference fit tolerance before pressing the bushing in place. Do not strike the bushing directly with a hammer, as this can damage the bore or distort the outside diameter. Because this is a permanent press fit bushing, it is not designed for field removal once installed.