Boneham H164DJ Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM H164DJ is a Type H press fit headed drill bushing manufactured from steel and designed to guide drill bits with precision in jig and fixture applications. With a 7/64-inch inside diameter and a 1/4-inch body outside diameter, this bushing installs by pressing directly into a prepared hole in a drill jig plate without the need for a lock mechanism. The head outside diameter measures 23/64 inches, head height is 3/32 inches, and the length under the head is 1/4 inch. It is a permanent, non-renewable bushing intended for production runs where the bushing does not require removal between operations.

This bushing is suited for use in metalworking, machining, and fabrication shops where accurate, repeatable hole location is required. It seats flush against the jig plate surface via the integral head, preventing the bushing from being pushed through during drilling operations. Machinists, tool and die makers, and fixture builders install this component as part of drill jig setups for ferrous and non-ferrous workpieces.

Key Features

• Type H press fit design installs permanently without a retaining lock ring
• 7/64-inch inside diameter with a tolerance of +0.0001 to +0.0004 inches for precise drill guidance
• Steel construction for durability in repeated drilling cycles
• Integral head (23/64-inch OD, 3/32-inch height) seats against jig plate surface to resist push-through
• 1/4-inch length under head suits standard jig plate thicknesses
• Non-renewable (non-counterbored) configuration for fixed, high-volume jig setups

Compatibility

Designed as an OEM-style press fit headed drill bushing conforming to Type H industry standards for use in drill jig plates requiring a 1/4-inch body outside diameter press fit bore.

Installation Notes

Press fit bushings are installed by machinists or toolmakers using an arbor press or hydraulic press to drive the bushing into a precisely reamed hole in the jig plate. The receiving hole must be machined to the correct interference fit tolerance before installation. Once pressed in, the bushing is not designed for removal and should be considered permanent. Inspect the jig plate bore and bushing OD for burrs or contamination before pressing to avoid damage to the inside diameter tolerance.