Boneham P136CG Press Fit Headless Drill Bushing

Product Description

The BONEHAM P136CG is a press fit headless drill bushing designed to guide cutting tools with precision in jig and fixture applications. It carries an industry code of P and features an inside diameter of 0.0785 inches (equivalent to a Number 47 wire gauge drill), a body outside diameter of 13/64 inches, and an overall length of 3/8 inches. Constructed from steel hardened to 60 to 65 HRC, the P136CG delivers the wear resistance required for repeated drilling cycles. The headless design allows flush seating in the fixture plate without a protruding flange. Installation is by press fit, eliminating the need for additional fasteners.

This bushing is suited for use in production drilling jigs, tooling fixtures, and precision machining setups where consistent hole location is critical. It is appropriate for light-duty to moderate-duty drilling operations in metalworking, fabrication, and machine shops. The Number 47 drill-size ID makes it a direct-fit guide for that specific drill diameter. The compact 3/8-inch length is well matched to thin fixture plates and close-tolerance assemblies. Machinists, tool-and-die makers, and production technicians are the primary installers.

Key Features

• Press fit installation — no fasteners or retaining hardware required
• Headless design seats flush with the fixture plate surface
• Steel construction hardened to 60 to 65 HRC for extended wear life
• Inside diameter tolerance of plus 0.0001 to plus 0.0004 inches for precise drill guidance
• Conforms to ANSI standards for drill bushing dimensions and fitment
• Non-renewable (fixed) bushing for permanent or semi-permanent fixture installations

Compatibility

Designed as an ANSI-standard P-series press fit headless drill bushing suitable for fixture plates and jig bodies machined to accept a 13/64-inch press fit bore.

Installation Notes

Press fit bushings are installed by a toolmaker or machinist using an arbor press or hydraulic press; never drive with a hammer to avoid distorting the bore. The receiving hole in the fixture plate must be machined to the correct interference fit tolerance before installation. Once pressed in, the bushing is considered permanent and is not intended for field removal and reuse. Follow applicable shop safety and lockout procedures when working with press equipment.