Boneham P8812NJ Press Fit Headless Drill Bushing

Product Description

The BONEHAM P8812NJ is a press fit headless drill bushing with an inside diameter of 51/64 inches and a body outside diameter of 1-3/8 inches. It carries industry bushing code P and is manufactured from steel for durability in production drilling applications. With an overall length of 3/4 inches and a headless profile, this bushing seats flush within a jig plate, making it well suited for close-tolerance hole location in metal fabrication and machining environments. The inside diameter tolerance runs from plus 0.0002 to plus 0.0006 inches, providing consistent guidance for drill bits across repeated operations.

This bushing is intended for use in drill jigs and fixture tooling where accurate, repeatable hole placement is required. It installs directly into a prepared hole in a jig plate without the need for a liner bushing. Typical applications include production machining, tool and die work, and general metalworking operations in both job shop and manufacturing settings. The non-renewable design is suited for permanent installations where the bushing will not be routinely replaced during production runs.

Key Features

• Press fit installation into jig plate bores without a liner bushing
• Headless design seats flush with the plate surface
• Inside diameter tolerance of plus 0.0002 to plus 0.0006 inches for precise drill guidance
• Steel construction for wear resistance in drilling applications
• Non-renewable fixed bushing suitable for permanent jig setups
• Industry bushing code P for straightforward specification and sourcing

Compatibility

Designed as an OEM-style replacement or direct specification component for press fit headless drill bushing applications conforming to industry P-series bushing standards.

Installation Notes

Installation is typically performed by tool and die makers or machining professionals using an arbor press to drive the bushing into a precision-bored hole in the jig plate. Ensure the receiving bore is machined to the correct interference fit before pressing the bushing into place. Pressing a bushing into an undersized or oversized bore can damage the bushing or compromise drill guidance accuracy. Power down and lock out all associated machinery before servicing or replacing jig components.