Boneham H8816NU Press Fit Headed Drill Bushing

Product Description

The BONEHAM H8816NU is a Type H press fit headed drill bushing used to guide drill bits, reamers, and other cutting tools with precision in jig and fixture applications. Manufactured from steel, this bushing installs permanently into a drill jig plate without a locking mechanism, relying on an interference press fit for retention. The inside diameter measures 55/64 inches with a close tolerance of +0.0002 to +0.0006 inches, ensuring accurate tool guidance. The body outside diameter is 1-3/8 inches, and the length under the head is 1 inch. Machinists, toolmakers, and fixture builders install this component during jig fabrication or repair.

This drill bushing is suited for use in production and maintenance machining environments where a fixed, non-renewable guide bushing is required. It is pressed directly into the jig plate bore and is intended to remain in place for the life of the tooling. The headed design provides a positive stop against the jig plate surface, controlling seating depth. Applications include drilling, reaming, and countersinking operations in metal fabrication, aerospace, automotive, and general manufacturing settings.

Key Features

• Press fit installation — no locking collar or liner bushing required
• Type H headed design provides a positive seating stop against the jig plate
• Inside diameter tolerance of +0.0002 to +0.0006 inches for precise tool guidance
• Steel construction for durability in high-cycle drilling applications
• Non-renewable design — intended for permanent installation in the fixture
• Head outside diameter of 1-39/64 inches and head height of 3/8 inches

Compatibility

Designed as an OEM-style replacement or original-build component for drill jigs and fixtures requiring a Type H press fit headed bushing with a 55/64-inch inside diameter and 1-3/8-inch body outside diameter.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or hydraulic press to drive the bushing into a precision-bored jig plate hole. The bore in the jig plate must be machined to the correct interference fit tolerance before installation. Once pressed in, the bushing is not designed for removal or replacement. Always verify bore diameter and surface finish before pressing to avoid damaging the bushing or jig plate.