Boneham PT366IO Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT366IO is a press fit headless drill bushing used to guide drill bits and cutting tools with precision in jig and fixture applications. Designated Industry Code P, this bushing features a 0.316 inch inside diameter, a 9/16 inch body outside diameter, and a 3/8 inch overall length. Manufactured from steel and hardened to 60 to 65 HRC, it provides the wear resistance required for repetitive drilling operations. The inside diameter tolerance of +0.0001 to +0.0005 inches ensures consistent hole location across production runs. Machinists, tool-and-die makers, and general metalworking shops are the primary installers.

This bushing is intended for use in drill jigs and fixtures where a permanent, flush-mount guide is required. The headless design allows the bushing to sit below or flush with the jig plate surface, making it suitable for applications where a protruding head would interfere with workpiece clamping or fixturing. It is suited for low-to-medium production environments where the bushing will not require routine replacement. Standard press fit installation into a prepared jig plate bore retains the bushing without additional fasteners or locking hardware.

Key Features

• Industry Code P designation with 0.316 inch inside diameter for standard drill guidance
• Hardened steel construction at 60 to 65 HRC for long service life under repeated drilling cycles
• Headless design allows flush or sub-flush installation in jig plates
• Press fit installation method retains bushing without additional hardware
• Inside diameter tolerance of +0.0001 to +0.0005 inches maintains precise hole location
• ANSI standard compliant for dimensional interchangeability

Compatibility

Designed as an OEM-style press fit headless drill bushing for use in standard jig and fixture bores sized to accept a 9/16 inch outside diameter bushing per ANSI specifications.

Installation Notes

Installation is typically performed by machinists or tool-and-die technicians using a bushing press or arbor press to drive the bushing into a precision-reamed jig plate bore. The receiving bore must be sized to the required press fit tolerance before installation. Power down any associated machinery before servicing jig components. Do not hammer the bushing directly without a proper driver to avoid damage to the bore or bushing ID.