Boneham H8816NJ Press Fit Headed Drill Bushing

Product Description

The BONEHAM H8816NJ is a Type H press fit headed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Manufactured from steel, this bushing features an inside diameter of 51/64 inches with a close-tolerance bore (+0.0002 to +0.0006 inches) that ensures accurate, repeatable hole location across production runs. The head style seats flush against the jig plate, preventing the bushing from being driven through the fixture under tool pressure. A body outside diameter of 1-3/8 inches and a 1-inch length under the head make this part suitable for moderate plate thickness. Machinists, toolmakers, and fixture builders install this type of component in ferrous and non-ferrous drilling, reaming, and boring setups.

This bushing is used in drill jig fixtures for production and prototype machining environments. Its press fit installation method makes it appropriate for permanent or semi-permanent fixture assemblies where the bushing is not intended for routine field replacement. Typical applications include multi-station transfer fixtures, drill templates, and tooling plates in job shops and manufacturing facilities. The headed design provides a positive stop that controls insertion depth and prevents axial migration during repeated drill cycles.

Key Features

• Type H headed design with a 1-39/64 inch head outside diameter provides a positive seating surface against the jig plate
• Press fit installation method secures the bushing permanently in the fixture body without additional fasteners
• Inside diameter tolerance of +0.0002 to +0.0006 inches supports accurate, repeatable tool guidance
• Steel construction offers strength and wear resistance in continuous drilling applications
• 3/8 inch head height keeps the bushing profile low while maintaining a solid shoulder stop
• Non-renewable design suited for permanent fixture assemblies

Compatibility

Designed as a standard Type H press fit headed drill bushing for use in drill jig fixtures requiring a 1-3/8 inch body outside diameter and 51/64 inch inside diameter bore.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or hydraulic press to seat the bushing into a properly dimensioned fixture bore. The receiving hole in the jig plate must be machined to the appropriate press fit tolerance to achieve correct interference. Power down all associated machine tooling before pressing the bushing into position. Do not hammer the bushing directly, as uneven force can distort the bore or damage the head seating surface.