Boneham H136DA Press Fit Headed Drill Bushing Steel

Product Description

The BONEHAM H136DA is a Type H press fit headed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Machined from steel, it features an inside diameter of 0.0995 inches with a tight tolerance of +0.0001 to +0.0004 inches, ensuring consistent hole location and reduced drill wander. The body outside diameter measures 13/64 inches, the head outside diameter is 19/64 inches, and the length under the head is 3/8 inches. The head height measures 3/32 inches. This bushing is pressed directly into a drill jig plate and is intended for permanent installation. Tool and die makers, machinist technicians, and fixture builders are the primary installers.

The H136DA suits production drilling, reaming, and boring operations where a fixed, non-renewable bushing is appropriate. Its headed design seats flush against the top surface of a jig plate, providing a positive stop during press installation. The compact body dimensions make it well suited for close-tolerance jig plates used in light manufacturing, aerospace component work, and general metalworking applications where repeatable hole location is critical.

Key Features

• Press fit installation — no locking mechanism required, seats permanently in the jig plate
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Headed (Type H) design provides a positive seating surface on the jig plate face
• Steel construction for durability in repetitive drilling and reaming operations
• Non-renewable design — intended for permanent fixture builds
• Not counterbored — straightforward press fit into standard jig plate bores

Compatibility

Designed as an OEM-style press fit headed drill bushing conforming to Type H industry standards, suitable for standard drill jig plates and fixture assemblies requiring a permanent bushing installation.

Installation Notes

Installation is performed by tool and die makers or machinists using an arbor press or hydraulic press to seat the bushing flush into the jig plate bore. Ensure the receiving hole in the jig plate is machined to the correct press fit tolerance before installation. Once pressed in, the H136DA is not designed for removal or replacement. Always deburr the receiving bore and clean mating surfaces before pressing to avoid cocking or damage to the bushing.