Boneham P166DY Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P166DY is a press fit headless drill bushing designed to guide cutting tools with precision during drilling operations. Manufactured from steel with a hardness rating of 60 to 65 HRC, this bushing resists wear and maintains dimensional accuracy under repeated use. It features a 0.1285 inch inside diameter, a 1/4 inch body outside diameter, and a 3/8 inch overall length. Classified under industry code P, it follows ANSI standards for drill bushing dimensions and tolerances. The headless, non-renewable design makes it suited for fixed installations where the bushing is pressed permanently into a jig plate.

This bushing is used in drill jig applications across machining, fabrication, and tooling environments. It is installed in jig plates to accurately locate and guide drill bits, reamers, or other cutting tools, ensuring consistent hole placement across production runs. The press fit installation method locks the bushing securely in the jig body without the need for a head or locking mechanism. Toolmakers, machinists, and fixture builders working in job shops or production facilities are the primary installers of this component.

Key Features

• Press fit installation for permanent, secure seating in jig plate bores
• Headless design provides a flush, low-profile fit within the jig body
• Steel construction with 60 to 65 HRC hardness for long service life
• Inside diameter tolerance of +0.0001 to +0.0004 inches for tight tool guidance
• Meets ANSI standards for drill bushing dimensions and interchangeability
• Inside diameter wire size equivalent: No. 30

Compatibility

Designed as an ANSI-standard press fit headless drill bushing suitable for use in standard drill jig plates and fixture bodies requiring a P-series bushing with a 1/4 inch outside diameter.

Installation Notes

Installation is performed by toolmakers or machinists using an arbor press or hydraulic press to seat the bushing flush within a precision-bored jig plate hole. The mating bore in the jig plate must be machined to the appropriate press fit tolerance to ensure proper retention. Once pressed in, this non-renewable bushing is not intended for removal and replacement. Confirm bore diameter and depth before pressing to avoid damaging the bushing or the jig plate.