Boneham P168EC Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P168EC is a press fit headless drill bushing designed to guide drill bits and cutting tools with precision during machining and fabrication operations. Manufactured from steel with a hardness rating of 60 to 65 HRC, this bushing delivers the wear resistance needed for repetitive drilling applications. It features a 0.136 inch inside diameter, a 0.25 inch body outside diameter, and a 0.5 inch overall length. The headless design allows it to sit flush within a jig plate, making it well suited for close-tolerance work where a flanged head would interfere with the workpiece or fixture setup.

This bushing is used in drill jig applications across metalworking, tool and die, and general manufacturing environments. The press fit installation method locks the bushing permanently into the jig plate without the need for a locking mechanism or collar. It conforms to ANSI standards and carries the industry code P, which identifies the bushing type within the standard press fit headless series. Machinists, tool makers, and fixture builders working in job shops or production facilities are the primary installers of this component.

Key Features

• Press fit installation method — no locking ring or collar required
• Headless design sits flush with jig plate surface for unobstructed tool entry
• Steel construction hardened to 60 to 65 HRC for extended service life
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise drill guidance
• Inside diameter sized for a Number 29 wire gauge drill bit
• Conforms to ANSI standards, bushing industry code P

Compatibility

Designed as an OEM-style replacement or standard fit component for drill jig plates and fixtures requiring a press fit headless bushing with a 0.136 inch inside diameter and a 0.25 inch outside diameter.

Installation Notes

Press fit bushings are installed by machinists or tool makers using an arbor press or hydraulic press — never drive with a hammer, as impact can damage the bushing bore or the jig plate seat. Ensure the receiving hole in the jig plate is machined to the correct toleranced diameter before pressing to avoid distortion of the inside diameter. Power down all associated machinery before servicing or replacing bushings in an active fixture.