Boneham P404JY Press Fit Headless Drill Bushing

Product Description

The BONEHAM P404JY is a press fit headless drill bushing designed to guide drill bits and other cutting tools with precision during machining and fabrication operations. Classified under Bushing Industry Code P, this headless style bushing seats flush within a jig plate without a collar, keeping the tool path clean and unobstructed. It measures 25/64 inches inside diameter, 5/8 inches outside diameter, and 1/4 inch overall length. Manufactured from steel hardened to 60 to 65 HRC, the P404JY holds tight inside diameter tolerances of plus 0.0001 to plus 0.0005 inches, ensuring repeatable hole location across production runs. Machinists and tooling technicians install this bushing as a fixed, non-renewable component in drill jigs and fixture plates.

The P404JY is suited for use in drill jig fixtures on machining centers, drill presses, and manual boring setups in light manufacturing, metalworking shops, and toolroom environments. Its compact 1/4-inch length makes it appropriate for thin jig plate applications where a headed or longer bushing would interfere with workpiece clearance. The press fit installation method locks the bushing permanently in place once seated, making it the correct choice for high-volume, fixed-location drilling operations where bushing replacement is not required.

Key Features

• Bushing Industry Code P headless style seats flush with the jig plate surface
• Steel construction hardened to 60 to 65 HRC for long service life under repeated tool contact
• Inside diameter tolerance of plus 0.0001 to plus 0.0005 inches supports accurate, consistent hole placement
• Press fit installation creates a permanent, non-renewable seat in the jig plate
• Compact 1/4-inch overall length suits thin plate and close-clearance fixture designs
• Meets ANSI standards for drill bushing dimensions and tolerances

Compatibility

Designed as an OEM-style fixed drill bushing for use in standard drill jig plates and fixture assemblies requiring a Code P headless press fit bushing with a 25/64-inch bore.

Installation Notes

Installation is performed by toolmakers or machinist technicians using an arbor press or hydraulic press to drive the bushing into a precision-bored hole in the jig plate. The receiving hole must be bored to the correct interference fit dimension for a Code P press fit bushing before installation. Once pressed in, the bushing is not designed for removal or replacement. Verify bore size and alignment with the fixture design before pressing the bushing into final position.