Boneham PT366IR Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT366IR is a press fit headless drill bushing in industry code P, designed to guide cutting tools with precision in jig and fixture applications. The bushing features a 0.323 inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches, a 9/16 inch outside diameter, and a 3/8 inch overall length. Constructed from steel hardened to 60-65 HRC, this bushing resists wear under repeated drilling cycles and maintains accurate hole location throughout production runs. It installs without a head, keeping the seating surface flush for applications where a protruding flange would interfere with workpiece clamping or part clearance.

This bushing is suited for use in drill jigs and production fixtures in metalworking and machining environments. It is a permanent, non-renewable press fit style, meaning it is driven or pressed directly into a reamed hole in the jig plate and is not intended for field replacement under load. Typical applications include repetitive drilling, reaming, and boring operations where consistent hole location is required across multiple workpieces. Machinists, toolmakers, and fixture builders working in job shop or production settings are the primary installers of this component.

Key Features

• Press fit installation method for permanent, secure seating in jig plate
• Headless design allows flush mounting where flange clearance is a concern
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Steel construction hardened to 60-65 HRC for extended wear life
• Meets ANSI standards for drill bushing dimensions and tolerances
• Non-renewable design; intended as a permanent fixture component

Compatibility

Designed as an OEM-style press fit headless drill bushing conforming to ANSI standards, suitable for use in jig plates and fixtures requiring a P-code inside diameter of 0.323 inches.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or hydraulic press to drive the bushing into a precision-reamed hole in the jig plate. The receiving hole must be reamed to the correct interference fit dimension per ANSI bushing standards before installation. Do not drive the bushing with a hammer directly on the bore face, as this can distort the inside diameter and compromise tool guidance accuracy. Once pressed in, this bushing is not designed for removal and reuse.