Boneham PT128CN Press Fit Headless Drill Bushing

Product Description

The BONEHAM PT128CN 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 a 0.086 inch inside diameter (wire size 44), a 3/16 inch body outside diameter, and a 1/2 inch overall length. Constructed from steel, it delivers the hardness and wear resistance required for accurate, repeatable hole placement in production and tooling fixtures. Installation is permanent via press fit, making it well suited for applications where a fixed, non-renewable bushing is the correct specification.

This bushing is used in jig and fixture tooling across machining, fabrication, and maintenance environments. It is appropriate for light-duty drilling setups where the smaller wire-size bore and compact OD suit close-tolerance fixture plates. Machinists, toolmakers, and maintenance technicians typically install this type of component when building or refurbishing drill jigs that require consistent hole location across multiple workpieces.

Key Features

• Press fit installation provides a permanent, non-renewable mount in the fixture plate
• Headless design sits flush with the fixture surface for unobstructed tool travel
• 0.086 inch ID (wire size 44) with a tight tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• 3/16 inch body OD and 1/2 inch overall length suit compact fixture layouts
• Steel construction resists wear during repeated drilling cycles
• Conforms to industry bushing code P for standardized fixture compatibility

Compatibility

Designed as an OEM-style replacement or new-build component for standard drill jig fixtures requiring a press fit headless bushing with a 0.086 inch ID and 3/16 inch OD to industry code P.

Installation Notes

Press fit bushings are installed by toolmakers or machinists using an arbor press or hydraulic press — never a hammer, which can distort the bore or crack the fixture plate. The receiving hole in the fixture plate must be finish-reamed to the correct tolerance before pressing the bushing in. Once installed, this bushing is not intended for removal or replacement. Always verify bore diameter with a calibrated gauge after pressing to confirm the bushing has not deflected out of tolerance.