Boneham P488KV Headless Drill Bushing 29/64 in Id 3/4 in Od

Product Description

The BONEHAM P488KV is a press fit headless drill bushing designed to guide drill bits and other cutting tools with precision in jig and fixture applications. Manufactured from steel, this Type P bushing features a 29/64 inch inside diameter, a 3/4 inch body outside diameter, and a 1/2 inch overall length. The headless design sits flush with the jig plate surface, making it suitable for close-clearance and nested tooling layouts. The tight inside diameter tolerance of plus 0.0001 to plus 0.0005 inches ensures consistent hole location and repeatable guidance across production runs. Machinists, toolmakers, and fixture builders install this bushing in drill jigs to maintain positional accuracy.

This bushing is used in drill jig and fixture assemblies in metalworking, manufacturing, and machine shop environments. The press fit installation method means the bushing is driven into a precision-bored hole in the jig plate and is not intended to be removed and replaced during normal service. The Type P industry code designates the body dimensions in accordance with standard drill bushing classifications, allowing straightforward selection when specifying replacements or building new fixtures. Applications span light to medium production drilling operations where hole location consistency is required.

Key Features

• 29/64 inch inside diameter with a plus 0.0001 to plus 0.0005 inch tolerance for precise tool guidance
• 3/4 inch body outside diameter conforming to Type P industry standard dimensions
• 1/2 inch overall bushing length suits standard jig plate thicknesses
• Headless design allows flush seating in jig plates where clearance is limited
• Steel construction provides durability under repeated drilling cycles
• Press fit installation - no set screws or locking mechanisms required

Compatibility

Designed as a standard Type P press fit headless drill bushing for use in drill jig and fixture assemblies requiring a 29/64 inch bore and 3/4 inch outside diameter press fit hole.

Installation Notes

Installation is performed by a toolmaker or machinist using an arbor press or hydraulic press. The receiving bore in the jig plate must be machined to the appropriate press fit tolerance before installation. Once pressed in, this bushing is not designed for removal - it is a permanent, non-renewable installation. Always verify bore diameter and surface finish in the jig plate before pressing to avoid damage to the bushing or the fixture.