Boneham PT286GZ Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM PT286GZ is a headless press fit drill bushing manufactured from steel, designed to guide drill bits and other cutting tools with precision in jig and fixture applications. With an inside diameter of 0.238 inches and a body outside diameter of 7/16 inches, this bushing provides accurate bore alignment during repetitive drilling operations. The overall length of 3/8 inches makes it suited for shallow jig plates where a low-profile bushing is required. It is classified under industry code P and is installed by pressing directly into a prepared hole in a drill jig, fixture plate, or tooling body without the use of a retaining head flange.

This bushing is intended for use in precision metalworking, machining, and fabrication environments where consistent hole location is critical. It is a non-renewable type, meaning it is pressed permanently into the jig plate and is not designed for quick field replacement. Machinists, toolmakers, and fixture builders working in production or prototype environments will find this bushing appropriate for applications requiring tight bore guidance and repeatable part positioning across high-cycle drilling runs.

Key Features

• Press fit installation method — no set screw or locking collar required
• Headless design allows flush or sub-flush seating in jig plates
• Inside diameter tolerance of plus 0.0001 to plus 0.0004 inches for precise drill guidance
• Steel construction provides durability in production drilling applications
• Industry code P classification for standard drill bushing identification
• Non-renewable fixed installation for permanent fixture setups

Compatibility

Designed as a standard P-series press fit headless drill bushing for use in precision machined jig plates and fixture tooling where a 7/16-inch outside diameter press fit bore has been prepared.

Installation Notes

Installation is typically performed by a toolmaker or machinist using an arbor press or hydraulic press to seat the bushing flush into a pre-bored jig plate hole sized to the bushing outside diameter tolerance. Ensure the receiving bore is clean and free of burrs before pressing to avoid bushing distortion. Because this is a non-renewable bushing, removal will likely damage the bushing and may require reaming or boring of the jig plate for replacement. Follow applicable shop safety procedures and de-energize any powered fixtures before servicing tooling components.