Boneham CB00001080 Headless Drill Bushing 3/16 in Id

Product Description

The BONEHAM CB00001080 is a press fit headless drill bushing designed to guide drill bits and cutting tools with precision in jig and fixture applications. Manufactured from steel and heat-treated to a hardness of 60 to 65 HRC, this bushing resists wear under repeated drilling cycles. The 3/16-inch inside diameter accepts standard drill shanks while the 1/2-inch outside diameter seats firmly into a mating jig plate bore. The 1-inch overall length provides adequate wall support for through-hole guidance. Installation is permanent press fit with no head flange, making it suitable for flush-mount tooling plates. Machinists, tool-and-die makers, and precision fabricators install this type of bushing when a fixed, non-renewable guide is required.

This bushing is used in drill jigs, fixture plates, and production tooling setups where repeatable hole location is critical. The headless profile is preferred when the bushing must sit flush with or below the jig plate surface, eliminating interference with workpiece clamping or template seating. Typical applications include metalworking shops, production machining lines, and maintenance repair operations where consistent hole placement across multiple parts is required. The non-renewable designation means this bushing is pressed in permanently and replaced along with the jig plate when worn.

Key Features

• Press fit installation for permanent, rigid seating in jig bores
• Headless design allows flush or sub-flush mounting in tooling plates
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise drill guidance
• Meets ANSI standards for drill bushing dimensions and tolerances
• Non-renewable fixed bushing — no liner or lock ring required

Compatibility

Designed as an ANSI-standard press fit headless drill bushing with Bushing Industry Code P, compatible with jig plates and fixture bores sized for a 1/2-inch outside diameter press fit installation.

Installation Notes

Press fit bushings are installed by a machinist or tool-and-die maker using an arbor press or hydraulic press — never drive with a hammer directly on the bushing face. Ensure the mating bore in the jig plate is machined to the correct interference fit tolerance before pressing. Once installed, this bushing is not designed for removal and reinstallation. Verify the drill or reamer shank diameter matches the 3/16-inch inside diameter before use.