Boneham P326IH Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P326IH is a press fit headless drill bushing used to guide drill bits and cutting tools with precision in machining and fabrication setups. This industry code P bushing features a 0.302 inch inside diameter, a 1/2 inch body outside diameter, and a 3/8 inch overall length. It is manufactured from steel and hardened to 60 to 65 HRC, providing the wear resistance required for repetitive drilling operations in jigs and fixtures. Installation is permanent — the headless design seats flush with the jig plate surface, making it well suited for applications where a protruding head would interfere with workpiece contact or clamping.

This bushing is appropriate for use in drill jigs across light and heavy industrial manufacturing environments. The headless configuration is commonly chosen when the bushing must sit below or flush with the top surface of a jig plate. Machinists, tool and die makers, and precision fabricators working with drill jig assemblies are the primary installers. The 0.302 inch ID accommodates the corresponding wire gauge drill bit and is sized to ANSI standards for interchangeability within compatible jig plate setups.

Key Features

• Hardened steel construction rated 60 to 65 HRC for long service life in high-cycle drilling operations
• Headless design seats flush with jig plate surface, eliminating interference with workpiece seating
• Press fit installation method provides a permanent, non-renewable mount with no mechanical fasteners required
• Inside diameter tolerance of plus 0.0001 to plus 0.0005 inches for consistent drill guidance
• Meets ANSI standards for drill bushing dimensional interchangeability
• Compact 3/8 inch overall length suits thin jig plate applications

Compatibility

Designed as an OEM-style replacement or new-installation press fit headless drill bushing for use in drill jigs and fixture plates requiring a P-series industry code bushing with a 0.302 inch inside diameter and 1/2 inch outside diameter per ANSI standards.

Installation Notes

Press fit bushings are installed by a machinist or toolmaker using an arbor press or hydraulic press — never driven in with a hammer, as this can distort the bore or damage the jig plate. The mating hole in the jig plate should be machined to the appropriate interference fit tolerance before installation. Once pressed in, the P326IH is a permanent, non-renewable bushing and is not designed for removal and reuse. Verify bore alignment and surface finish of the plate hole prior to pressing to ensure concentricity and full seating.