Boneham P488KI Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P488KI 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 standards, this bushing features a 0.413-inch inner diameter, a 3/4-inch body outside diameter, and a 1/2-inch overall length. Constructed from steel, it delivers the hardness and wear resistance required in production drilling fixtures and jig plates. The headless design sits flush with the jig plate surface, making it well suited for close-clearance applications where a flanged head would interfere with workpiece setup or tooling travel.

This bushing is used in machining and fabrication environments where repeatable hole location is critical. It installs directly into a drill jig or fixture plate without requiring a liner bushing, making it a fixed, non-renewable component. Typical applications include production runs in metal fabrication shops, machine shops, and tooling departments. The press fit installation method locks the bushing in place under interference fit conditions, eliminating movement during drilling cycles.

Key Features

• Press fit installation provides a secure, non-rotating fit in the jig plate bore
• Headless design sits flush with fixture surface for low-clearance tooling setups
• Steel construction offers high hardness and resistance to wear from repeated tool passes
• 0.413-inch inner diameter with a tight tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Industry Code P classification for standard interchangeability with compatible jig components
• Non-renewable fixed bushing — intended for permanent installation in the fixture

Compatibility

Designed as a fixed press fit drill bushing conforming to Industry Code P specifications, suitable for use in standard drill jig plates and fixture assemblies requiring a 3/4-inch OD bore.

Installation Notes

Installation is typically performed by toolmakers or machinist-level tradespeople using an arbor press or hydraulic press to drive the bushing into a precision-bored hole. The receiving bore in the jig plate must be machined to the correct interference fit tolerance before installation. Once pressed in, the bushing is not intended for removal or replacement. Verify bore diameter and alignment before pressing to prevent bushing damage or misalignment in the fixture.