Boneham PT284IB Headless Drill Bushing 0.29 in Id Steel

Product Description

The BONEHAM PT284IB is a press fit headless drill bushing designed to guide drill bits and other cutting tools with precision during machining and fabrication operations. Built from steel, this Type P headless bushing installs without a head flange, making it well-suited for applications where a flush or recessed seating is required in the jig plate. The inside diameter measures 0.29 inches with a tolerance of +0.0001 to +0.0005 inches, providing a close fit that holds tooling on-center. The body outside diameter is 7/16 inches and the overall bushing length is 1/4 inch. Machinists, tool and die makers, and fixture builders are the primary installers of this component.

This drill bushing is used in drill jigs and fixture tooling across general metalworking, manufacturing, and precision machining environments. The Type P designation and headless profile make it a standard choice for permanent or close-tolerance guiding applications in both production and prototype settings where a retainer or lock collar is not required and a clean, low-profile installation is preferred. It is sold individually and carries a minimum order quantity of one piece.

Key Features

• Press fit installation method for secure, interference-fit seating in jig plate bores
• Headless design provides a flush or below-surface profile with no flange interference
• Inside diameter of 0.29 inches with a precision tolerance of +0.0001 to +0.0005 inches
• Body outside diameter of 7/16 inches and overall length of 1/4 inch
• Steel construction for durability and wear resistance in repeated drilling applications
• Bushing Industry Code P designation for standardized identification and replacement

Compatibility

Designed as an OEM-style replacement or standard fit component for drill jigs and tooling fixtures requiring a Type P headless press fit bushing with a 0.29-inch inside diameter and 7/16-inch outside diameter.

Installation Notes

Press fit drill bushings are installed by toolmakers or machinists using an arbor press to drive the bushing squarely into a precision-reamed bore in the jig plate. The receiving bore must be machined to the correct diameter to achieve the required interference fit before pressing the bushing in place. Do not hammer the bushing directly without a driver or press tool, as this can damage the bore or distort the bushing. Once pressed in, this bushing is not designed for removal and reuse.