Boneham P4816KV Headless Drill Bushing 29/64 in Id 3/4 in Od

Product Description

The BONEHAM P4816KV is a press fit headless drill bushing designed to guide cutting tools with precision in production drilling and machining operations. Built to Industry Code P standards, this bushing features a 29/64 inch inside diameter, a 3/4 inch body outside diameter, and a 1 inch overall length. Manufactured from steel hardened to 60-65 HRC, it delivers the wear resistance needed for high-cycle tooling applications. The headless design allows flush seating in jig plates without a flange protruding above the surface. Licensed machinists and tooling technicians install this type of bushing in drill jigs and fixture plates.

This bushing is suited for use in drill jig assemblies found in metalworking, fabrication, and production machining environments. The press fit installation method locks the bushing permanently into the jig plate, making it the appropriate choice when the bushing position will not require frequent replacement. It is commonly used in both light and heavy manufacturing where repeatable hole location accuracy is required across multiple workpieces.

Key Features

• Inside diameter: 29/64 inches with a tight tolerance of plus 0.0001 to plus 0.0005 inches for precise tool guidance
• Body outside diameter: 3/4 inches for a secure press fit into standard jig plate bores
• Overall length: 1 inch providing adequate tool guidance depth for typical drill jig applications
• Steel construction hardened to 60-65 HRC for extended wear life under repeated tool contact
• Headless design seats flush with jig plate surface, eliminating flange interference
• Conforms to ANSI standards for drill bushing dimensions and tolerances

Compatibility

Designed as a permanent press fit replacement or new-installation headless drill bushing for ANSI-standard drill jig plates requiring a 3/4 inch OD bore and 29/64 inch tool clearance.

Installation Notes

Press fit headless bushings are installed by toolmakers or machinists using an arbor press or hydraulic press to seat the bushing flush into a pre-bored jig plate hole sized to the appropriate interference fit tolerance. The jig plate bore should be finish-reamed to the correct diameter before installation. Once pressed in, this bushing is not intended for removal or repositioning. Ensure the workpiece fixture and jig plate are fully secured before drilling operations begin.