Boneham P135CT Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P135CT is a press fit headless drill bushing designed to guide drill bits with precision in metalworking and machining applications. Classified under Bushing Industry Code P, this headless style bushing seats flush within a jig plate, eliminating a head flange for low-clearance setups. The inside diameter measures 0.0935 inches (Wire Size 42) with a tight tolerance of +0.0001 to +0.0004 inches, ensuring accurate hole location and consistent bit guidance. The body outside diameter is 13/64 inches with an overall length of 5/16 inches. Constructed from steel, this bushing is built for the repeated loading demands of production drilling environments.

This bushing is suited for use in drill jig assemblies across general machining, toolroom, and light manufacturing operations. The press fit installation method locks the bushing permanently into the jig plate without the need for a retaining screw or lock, making it appropriate for fixed, high-volume drilling setups. Machinists, tool and die makers, and production shop personnel are the typical installers. It is not a renewable bushing and is intended for permanent installation in the jig body.

Key Features

• Inside diameter of 0.0935 inches (Wire Size 42) with +0.0001 to +0.0004 inch tolerance for precise bit guidance
• Headless design seats flush in jig plate for low-clearance and close-center applications
• Press fit installation method provides a permanent, secure seating without additional hardware
• Steel construction resists wear under repeated drilling cycles
• Compact overall length of 5/16 inches suits thin jig plates and tight-tolerance fixtures
• Non-renewable design intended for fixed, permanent jig configurations

Compatibility

Designed as an OEM-style replacement or original-fit component for drill jig plates requiring a press fit headless bushing with a 13/64 inch outside diameter and 0.0935 inch inside diameter.

Installation Notes

Installation is performed by machinists or tool and die makers using an arbor press to drive the bushing flush into the prepared jig plate bore. The receiving bore must be machined to the appropriate interference fit tolerance to ensure a secure press fit. Do not drive the bushing with a hammer directly on the bushing face, as this can damage the bore or distort the inside diameter. This is a permanent bushing and is not designed for removal and replacement after installation.