Boneham P4816JQ Press Fit Headless Drill Bushing

Product Description

The BONEHAM P4816JQ is a press fit headless drill bushing used to guide drill bits and other cutting tools with precision in metalworking and machining applications. Manufactured from steel hardened to 60 to 65 HRC, this bushing provides consistent bore alignment and wear resistance during repetitive drilling operations. The 3/8 inch inside diameter accepts standard drill shanks, while the 3/4 inch outside diameter body presses into a prepared receiver hole for a secure, flush-mount installation. The 1 inch overall length suits moderate-depth fixture setups. Machinists and toolmakers rely on this type of bushing in jig and fixture assemblies to maintain hole location accuracy across production runs.

The P4816JQ is designed for use in drill jigs, fixture plates, and tooling boards across light manufacturing, job shop, and maintenance environments. Its headless profile sits flush with the fixture surface, making it appropriate where clearance above the workpiece is limited or where a protruding head would interfere with clamping. Conforming to ANSI standards, it fits standard P-series press fit bushing bores. This part is not a renewable bushing and is intended as a permanent installation in the fixture body.

Key Features

• Press fit installation method for permanent, vibration-resistant seating in fixture bores
• Headless design sits flush with fixture surface for clearance-critical setups
• Steel construction hardened to 60 to 65 HRC for extended wear life under repeated drilling
• Inside diameter tolerance of +0.0001 to +0.0005 inches ensures close drill-shank guidance
• ANSI-standard P-series industry code for interchangeability with conforming fixture bores
• Non-renewable design for permanent fixture integration

Compatibility

Designed as an ANSI-standard P-series press fit headless drill bushing compatible with fixture bores dimensioned to accept a 3/4 inch outside diameter press fit bushing.

Installation Notes

Installation is performed by machinists or toolmakers using an arbor press or hydraulic press to seat the bushing flush into a prepared receiver bore. The fixture plate or jig body should be secured and fully supported before pressing to avoid distortion. Verify bore dimensions and surface finish in the receiver hole before installation, as press fit bushings are not designed to be removed and reinstalled without risk of damage. Follow applicable shop safety procedures when operating pressing equipment.