Boneham P168DY Press Fit Headless Drill Bushing

Product Description

The BONEHAM P168DY is a press fit headless drill bushing used to guide drill bits with precision in jig and fixture applications. Classified under Industry Code P, this bushing features a 0.1285 inch inside diameter (equivalent to a No. 30 wire gauge drill), a 1/4 inch body outside diameter, and a 1/2 inch overall length. Constructed from steel hardened to 60 to 65 HRC, it delivers the wear resistance required for repeated drilling cycles. Inside diameter tolerance is held to +0.0001 to +0.0004 inches, ensuring consistent hole location accuracy. Machinists and tooling technicians install this component during jig assembly or fixture maintenance.

This bushing is suited for precision drilling operations in manufacturing, tool-and-die, and metalworking environments. The headless design allows the bushing to sit flush within a jig plate, making it appropriate where clearance above the plate surface is limited. It is installed by press fit, seating permanently into the jig body without the need for retaining hardware. Typical applications include production drilling jigs in both job-shop and high-volume manufacturing settings. This is not a renewable bushing and is intended as a fixed, permanent installation.

Key Features

• Industry Code P press fit headless design for permanent, flush jig plate installation
• Inside diameter of 0.1285 inches (No. 30 wire gauge) with a tolerance of +0.0001 to +0.0004 inches for tight positional accuracy
• Steel construction hardened to 60 to 65 HRC for extended wear life under repeated drilling
• 1/4 inch outside diameter and 1/2 inch overall length for compact fixture footprint
• Meets ANSI standards for drill bushing dimensions and tolerances
• Non-renewable fixed installation — no retaining screw or lock required

Compatibility

Designed as an OEM-style replacement or direct installation component for drill jigs and fixtures requiring a press fit headless bushing with a No. 30 (0.1285 inch) inside diameter and a 1/4 inch outside diameter, conforming to ANSI P-series bushing standards.

Installation Notes

Installation is performed by machinists or tooling technicians using a press or arbor press to seat the bushing flush into the jig plate bore. The mating bore in the jig plate must be machined to the correct interference fit tolerance prior to installation. Do not drive the bushing in with a hammer directly on the face, as this can damage the inside diameter or distort the bushing. Once pressed in, the bushing is not designed for removal or reuse.