Boneham H488KV Press Fit Headed Drill Bushing 29/64 Id

Product Description

The BONEHAM H488KV is a Type H press fit headed drill bushing designed to guide cutting tools with precision in jig and fixture applications. It features a 29/64 inch inside diameter, a 3/4 inch body outside diameter, and a 1/2 inch length under the head. The hardened steel construction is rated at 60 to 65 HRC, providing wear resistance in high-cycle drilling, reaming, and boring operations. The headed design seats flush against the fixture plate and resists axial pullout during tooling operations. Inside diameter tolerance is held to plus 0.0001 to plus 0.0005 inches for consistent tool guidance.

This bushing is suited for use in production drilling jigs, machining fixtures, and tooling plates where repeatable hole location is required. It is a permanent, non-renewable installation — once pressed into the fixture, it is not intended for routine removal or replacement. Machinists, tool and die makers, and fixture builders working in manufacturing and metalworking environments are the primary installers. The ANSI-compliant design makes it compatible with standard jig plate engineering specifications.

Key Features

• Type H headed design resists axial displacement under drilling loads
• 29/64 inch ID with tight tolerance of plus 0.0001 to plus 0.0005 inches for accurate tool guidance
• Hardened steel construction rated 60 to 65 HRC for long service life
• Press fit installation — no liner or locking mechanism required
• Non-renewable design for permanent fixture installations
• ANSI-compliant geometry for use in standard jig plate applications

Compatibility

Designed as an OEM-style permanent press fit drill bushing for use in standard jig and fixture plates conforming to ANSI drill bushing specifications.

Installation Notes

Installation is performed by pressing the bushing into a precision-reamed hole in the fixture plate using an arbor press or hydraulic press — never drive with a hammer directly on the bushing head. Ensure the host plate bore diameter matches the body outside diameter to achieve proper interference fit. Remove all chips and debris from the bore before pressing. Once installed, the bushing is considered permanent and should not be removed without risk of damaging the fixture plate.