Boneham P325GH Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P325GH is a press fit headless drill bushing designed to guide drill bits and cutting tools with precision in jig and fixture applications. Manufactured from steel, this Industry Code P bushing features a 0.2055 inch inside diameter, a 1/2 inch body outside diameter, and a 5/16 inch overall length. The headless design allows the bushing to sit flush within a bored hole, making it well suited for applications where a protruding head would interfere with workpiece clamping or surface contact. Machinists and tooling specialists install this bushing by pressing it directly into a pre-bored jig plate without the need for locking screws or additional hardware.

This bushing is used in drill jigs, fixture plates, and production tooling setups where repeatable hole location accuracy is required. The press fit installation method provides a secure, permanent mount suitable for moderate to high production runs. The inside diameter tolerance of plus 0.0001 to plus 0.0004 inches ensures consistent guidance for standard drill bit sizes corresponding to a wire gauge number 5 drill. It is appropriate for both manual drill press operations and CNC-assisted jig drilling in machining and fabrication environments.

Key Features

• Industry Code P headless configuration for flush installation in jig plates
• 0.2055 inch inside diameter with a tolerance of plus 0.0001 to plus 0.0004 inches for precise drill guidance
• 1/2 inch body outside diameter and 5/16 inch overall length
• Steel construction for durability in repetitive drilling applications
• Press fit installation method — no locking hardware required
• Not designed as a renewable bushing; intended for permanent fixture installation

Compatibility

Designed as an OEM-style press fit headless drill bushing for use in standard jig plates and fixture tooling bored to accept a 1/2 inch outside diameter bushing.

Installation Notes

Installation is performed by machinists or tooling technicians using an arbor press or similar pressing equipment to seat the bushing flush into the bored jig plate. Ensure the receiving bore is machined to the correct tolerance for a press fit before installation. Do not hammer the bushing directly without a proper pressing tool, as this may damage the bore or distort the bushing. Once pressed in, this bushing is not intended for removal or replacement.