Boneham H568LP Press Fit Headed Drill Bushing

Product Description

The BONEHAM H568LP is a Type H press fit headed drill bushing designed to guide drill bits and other cutting tools with precision in jig and fixture applications. It features a 33/64-inch inside diameter and a 7/8-inch body outside diameter, with a 1/2-inch length under the head. Constructed from steel, this bushing is pressed permanently into a drill jig plate and does not rotate or require a locking liner. The headed design provides a positive stop against the jig surface, helping maintain consistent hole location across repeated operations.

This bushing is suited for production and toolroom environments where repeatable hole positioning is required. It is installed in steel or cast-iron jig plates used on drill presses, milling machines, and machining centers. Type H headed press fit bushings are a standard choice when a fixed, non-renewable guide is appropriate for the application and the bushing is not expected to need field replacement during the life of the fixture.

Key Features

• Press fit installation method for permanent, non-renewable seating in jig plates
• 33/64-inch inside diameter with a close tolerance of +0.0001 to +0.0005 inches for accurate tool guidance
• 7/8-inch body outside diameter and 1/2-inch length under head
• Headed (Type H) design provides a positive stop flush against the jig surface
• 1-7/64-inch head outside diameter and 1/4-inch head height
• Steel construction for durability in repeated drilling operations

Compatibility

Designed as an OEM-style replacement or new-installation press fit headed drill bushing for use in standard drill jig plates requiring a Type H bushing with a 33/64-inch inside diameter and 7/8-inch body outside diameter.

Installation Notes

Press fit bushings are typically installed by a toolmaker or machinist using an arbor press to drive the bushing flush into a precisely bored jig plate hole. The receiving hole in the jig plate must be machined to the correct interference fit specification to ensure the bushing seats without rotation or movement during use. Do not attempt to drive the bushing with impact tools, as this can damage the bore or distort the head. The bushing is not renewable and is not intended for removal and reinstallation once pressed into place.