Boneham H6422NE Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM H6422NE is a Type H press fit headed drill bushing manufactured from steel, designed to guide drill bits and other cutting tools with precision during machining and fabrication operations. With an inside diameter of 49/64 inches and a body outside diameter of 1 inch, this bushing is pressed directly into a jig plate or fixture without requiring a locking mechanism. The head outside diameter measures 1-15/64 inches with a head height of 5/16 inches, and the length under the head is 1-3/8 inches. It is a non-renewable, fixed installation component suited for high-volume production setups where consistent hole location accuracy is critical.

This bushing is used in drill jigs and fixture plates across metalworking, tool-and-die, and general manufacturing environments. The press fit design makes it appropriate for applications where the bushing will remain permanently in place throughout the life of the fixture. Machinists and toolmakers install this style in production jigs where repeated drilling operations require tight positional tolerances and the bushing does not need to be swapped out between operations.

Key Features

• Type H headed configuration retains the bushing against axial pullout during drilling operations
• Press fit installation method requires no locking collar or additional hardware
• Steel construction provides durability and wear resistance for repeated tool passes
• Inside diameter tolerance of +0.0002 to +0.0006 inches supports close-tolerance drill guidance
• Non-renewable design intended for permanent fixture installations
• Head outside diameter of 1-15/64 inches seats flush against the jig plate surface

Compatibility

Designed as a standard Type H press fit headed drill bushing compatible with drill jig plates and fixtures bored to accept a 1-inch OD press fit bushing per industry standard tooling practices.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or hydraulic press to drive the bushing into the fixture bore. The mating bore in the jig plate must be machined to the appropriate interference fit tolerance to ensure the bushing seats securely and does not rotate or back out under load. Verify bore diameter and surface finish prior to pressing the bushing in, as removal after press fitting will typically damage the bushing or the fixture. Always de-burr and clean the bore before installation.