Boneham P168DQ Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P168DQ is a press fit headless drill bushing designed to guide drill bits and other cutting tools with precision in jig and fixture applications. Manufactured from steel, this bushing features an inside diameter of 0.116 inches (wire gauge #32) with a tight tolerance of +0.0001 to +0.0004 inches, ensuring consistent hole location and repeatable accuracy across production runs. The outside diameter measures 1/4 inch with an overall length of 1/2 inch. It installs without mechanical fasteners, relying on an interference press fit to seat flush in the jig plate. Machinists, tool and die makers, and fixture builders are the primary users of this component.

This bushing is suited for use in drill jigs, fixture plates, and tooling setups where a permanent, headless installation is required. The headless profile allows the bushing to sit flush with or below the surface of the jig plate, making it appropriate for applications where a protruding flange would interfere with the workpiece or tooling clearance. Industry code P identifies the bushing type within standard tooling catalogs, simplifying cross-referencing for fixture builders sourcing replacements or building new fixtures to standard specifications.

Key Features

• Press fit installation — no fasteners required, seats permanently in jig plate bore
• Headless design sits flush with plate surface for unobstructed tool approach
• Inside diameter of 0.116 inches (wire gauge #32) with tolerance of +0.0001 to +0.0004 inches
• Steel construction for wear resistance in repetitive drilling operations
• Industry code P for straightforward catalog cross-referencing
• Overall length of 1/2 inch suits standard jig plate thicknesses

Compatibility

Designed as a standard industry code P press fit headless drill bushing, compatible with jig plates and fixtures bored to accept a 1/4 inch OD press fit bushing per standard tooling specifications.

Installation Notes

Installation is performed by pressing the bushing into a precisely bored hole using an arbor press or hydraulic press — never hammer directly on the bushing face, as this can distort the bore. The receiving hole in the jig plate must be machined to the correct interference fit tolerance to ensure the bushing seats without rotation or pullout during service. Verify that all cutting operations on the jig plate are complete before pressing the bushing in, as the bushing is not designed for repeated removal and reinstallation.