Boneham H135BF Press Fit Headed Drill Bushing

Product Description

The BONEHAM H135BF is a Type H press fit headed drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. It features a 3/64 inch inside diameter and a 13/64 inch body outside diameter, with a 5/16 inch length under the head. Constructed from steel, this bushing is pressed directly into a jig plate or fixture body and does not rotate during use. It is a non-renewable design, meaning it is intended for permanent installation in tooling fixtures. Machinists, toolmakers, and fixture builders install this component during the fabrication or maintenance of drill jigs used in production and prototype environments.

This bushing suits applications in metalworking and manufacturing where repeatable hole location accuracy is required. It fits into jig plates and tooling fixtures used in light to medium production drilling setups. The headed design provides a positive stop against the jig plate surface, controlling the bushing depth and preventing it from being driven through the plate during press installation. Typical users include tool and die shops, machine shops, and production facilities where drill jig components are built or refurbished.

Key Features

• Press fit installation method for permanent, non-rotating fixture placement
• Type H headed design provides a positive stop against the jig plate surface
• 3/64 inch inside diameter with a tight tolerance of +0.0001 to +0.0004 inches for accurate tool guidance
• Steel construction for durability in repeated drilling applications
• Non-renewable design suited for permanent tooling fixture builds
• 19/64 inch head outside diameter and 3/32 inch head height for stable seating

Compatibility

Designed as an OEM-style replacement or new-build component for standard drill jig fixtures requiring a Type H press fit headed bushing with a 3/64 inch inside diameter and 13/64 inch body outside diameter.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or hydraulic press. The jig plate bore should be machined to the appropriate press fit tolerance before installation. Ensure the bushing is driven squarely into the bore to avoid cocking or damage to the inside diameter. Once pressed in, the bushing is not intended for removal or reuse.