Boneham H8816NZ Press Fit Headed Drill Bushing Steel

Product Description

The BONEHAM H8816NZ is a Type H press fit headed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Machined from steel, this bushing features a 57/64 inch inside diameter with a tight inside diameter tolerance of +0.0002 to +0.0006 inches, ensuring accurate drill guidance and consistent hole location across repeated operations. The body outside diameter measures 1-3/8 inches with a 1 inch length under the head. The head outside diameter is 1-39/64 inches and the head height is 3/8 inch. This is a permanent, non-renewable bushing installed by press fit directly into the jig plate. Toolmakers, machinists, and fixture builders are the primary installers of this component.

The H8816NZ is suited for use in drill jigs, fixture plates, and tooling setups in production machining environments, both in job shop and manufacturing floor applications. It is appropriate for use wherever a fixed, non-renewable bushing is required to maintain hole position repeatability. The headed design provides a positive stop against the jig plate surface, preventing the bushing from being pushed through under drilling load. This bushing is not counterbored and does not accept a renewable liner.

Key Features

• Type H press fit headed design seats flush against jig plate surface for positive axial location
• 57/64 inch inside diameter with +0.0002 to +0.0006 inch ID tolerance for precise drill guidance
• Steel construction provides durability in repetitive drilling operations
• 1 inch length under head suits moderate jig plate thicknesses
• Non-renewable, permanent installation — no liner required
• Not counterbored, suitable for standard through-plate press fit installation

Compatibility

Designed as a standard Type H press fit headed drill bushing for use in drill jigs and machining fixtures requiring a permanent bushing with a 57/64 inch bore.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press or hydraulic press — never drive with a hammer directly on the bushing face. The receiving hole in the jig plate must be machined to the appropriate interference fit tolerance before installation. Once pressed in, this bushing is considered permanent and is not intended for field removal or replacement. Verify inside diameter clearance with the intended drill or reamer before pressing the bushing into the plate.