Boneham CB00001261 Headless Drill Bushing 0.055 in Id

Product Description

The BONEHAM CB00001261 is a press fit headless drill bushing designed to guide cutting tools with precision in jig and fixture applications. With an inside diameter of 0.055 inches (wire gauge No. 54) and a body outside diameter of 3/16 inch, this bushing accepts tight inside diameter tolerances of +0.0001 to +0.0004 inches for repeatable hole location accuracy. The overall bushing length is 5/8 inch. Constructed from steel hardened to 60 to 65 HRC, it resists wear under continuous drilling cycles. Machinists, tool-and-die makers, and production technicians install this type of bushing directly into a drill jig plate without a retaining screw or head flange.

This bushing is suited for production drilling, reaming, and boring operations where a flush, headless profile is required. The press fit installation method locks the bushing permanently into the jig plate bore, making it appropriate for high-volume repetitive operations where bushing replacement is not anticipated. It is counterbored and conforms to ANSI standards, fitting standard drill jig plate layouts used in metal fabrication, aerospace component work, and general machining environments.

Key Features

• Headless press fit design installs flush with the jig plate surface
• Inside diameter of 0.055 inches (No. 54 wire gauge) with +0.0001 to +0.0004 inch tolerance
• Steel construction hardened to 60 to 65 HRC for extended wear resistance
• Counterbored body for proper seating in jig plate applications
• Conforms to ANSI standards for drill bushing dimensional compatibility
• Non-renewable design intended for permanent press fit installation

Compatibility

Designed as an OEM-style press fit headless drill bushing conforming to ANSI standards, suitable for use in standard drill jig plates and fixtures requiring a 3/16 inch OD bushing bore.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press or hydraulic press to seat the bushing into a properly sized jig plate bore. The mating bore in the jig plate must be machined to the correct interference fit dimension to ensure secure retention. Power down all associated machinery and secure the jig plate before pressing the bushing in. Do not drive the bushing with a hammer directly on the bushing face, as this can damage the bore geometry.