Boneham P164EF Press Fit Headless Drill Bushing

Product Description

The BONEHAM P164EF is a press fit headless drill bushing designed to guide cutting tools with precision during drilling operations. Carrying industry bushing code P, this headless style bushing features an inside diameter of 0.1405 inches (wire size #28) with a tight tolerance of +0.0001 to +0.0004 inches, ensuring consistent hole location accuracy. The outside diameter measures 1/4 inch with an overall length of 1/4 inch. Constructed from steel, it delivers the hardness and wear resistance required for repetitive production drilling in jig and fixture applications. Machinists, toolmakers, and fixture builders are the primary installers of this component.

This bushing is suited for use in drill jigs and tooling fixtures in light to medium production environments. The headless profile allows it to seat flush within the jig plate, making it appropriate for applications where a protruding head would interfere with workpiece clearance or fixture stacking. Its compact 1/4-inch body fits standard-sized jig plate bores machined to accept P-series press fit bushings. It is not a renewable (slip-renewable) type and is intended as a permanent or semi-permanent installation once pressed into the jig plate.

Key Features

• Press fit installation - seats permanently or semi-permanently without locking hardware
• Headless design provides flush seating in jig plates where head clearance is limited
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Steel construction for hardness and wear resistance in repetitive drilling operations
• Industry standard P bushing code for straightforward replacement and interchangeability
• Wire size #28 inside diameter (0.1405 inches) accommodates corresponding drill bit sizing

Compatibility

Designed as a standard P-series press fit headless drill bushing for use in drill jigs and tooling fixtures machined to accept 1/4-inch outside diameter bushings of this industry classification.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or bushing press tool - never hammer directly on the bushing face, as this can damage the bore geometry or distort the outer diameter. The receiving bore in the jig plate must be machined to the correct interference fit to retain the bushing securely under drilling loads. Verify bore depth and diameter before pressing to avoid cocking or incomplete seating. This bushing is not intended for removal and reinstallation once pressed in place.