Boneham P165DK Press Fit Headless Drill Bushing

Product Description

The BONEHAM P165DK is a press fit headless drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Built to industry code P, this bushing features an inside diameter of 0.11 inches (wire size 35), a body outside diameter of 0.25 inches, and an overall length of 0.3125 inches. Manufactured from steel, it is pressed directly into a jig plate without a head flange, keeping the bushing flush with the plate surface. Inside diameter tolerance is held to +0.0001 to +0.0004 inches, ensuring consistent tool guidance across repeated operations. Machinists, toolmakers, and fixture builders install this type of bushing in drill jigs to maintain hole location accuracy in production and maintenance environments.

This bushing is suited for use in drill jig fixtures across light manufacturing, maintenance shops, and toolroom applications. The headless press fit design makes it appropriate for installations where the bushing must sit flush with or below the jig plate surface. It is a non-renewable style, meaning it is pressed permanently into the plate and is not intended for quick field replacement. Typical use cases include guiding twist drills, step drills, or reamers through a fixed jig in repetitive hole-location operations on metal workpieces.

Key Features

• Press fit installation method — no fasteners or locking collars required
• Headless design seats flush with jig plate surface
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Steel construction provides wear resistance under repeated tool passes
• Industry code P classification for standard drill bushing interchangeability
• Non-renewable fixed style — permanently installed in the jig plate

Compatibility

Designed as a standard P-code press fit headless drill bushing for use in drill jig plates requiring a 0.25-inch body outside diameter and a 0.11-inch inside diameter bore.

Installation Notes

Installation is typically performed by toolmakers or machinist-level personnel using an arbor press to drive the bushing flush into a precision-bored jig plate hole. The mating plate bore should be dimensioned to achieve the required interference fit for a press fit bushing of this outside diameter. Do not drive the bushing with a hammer directly on the bore face, as this can distort the inside diameter. Inspect the installed bushing for concentricity and flush seating before placing the jig into service.