Boneham P325GW Press Fit Headless Drill Bushing Steel

Product Description

The BONEHAM P325GW 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 bushing installs without a head, making it suited for flush-mount applications where a protruding flange would interfere with workpiece clearance. The inside diameter is 0.234 inches with a tolerance of +0.0001 to +0.0004 inches, the body outside diameter is 0.5 inches, and the overall length is 0.3125 inches. It carries an industry code of P, which identifies the bushing series and corresponds to standard drill bushing specifications used across metalworking and machining trades.

This bushing is used in drill jigs, fixture plates, and tooling setups where repeatable hole location is required. The press fit installation method means the bushing is driven or pressed directly into a prepared hole in the jig plate, providing a permanent, non-renewable mount. Typical applications include production drilling, reaming, and boring operations in machine shops, toolrooms, and manufacturing environments. Installation is performed by machinists and tool and die technicians working with ferrous and non-ferrous workpieces that require consistent hole positioning across multiple parts.

Key Features

• Press fit installation method for permanent, non-renewable mounting in jig plates
• Headless design allows flush seating where flange clearance is not available
• Inside diameter of 0.234 inches with a tight tolerance of +0.0001 to +0.0004 inches for accurate drill guidance
• Body outside diameter of 0.5 inches and overall length of 0.3125 inches
• Steel construction provides hardness and wear resistance suitable for production drilling cycles
• Industry code P for compatibility with standard drill bushing sizing references

Compatibility

Designed as an OEM-style replacement or new-install component for drill jig fixtures requiring a press fit headless bushing with a 0.234-inch inside diameter and 0.5-inch outside diameter per standard drill bushing industry sizing.

Installation Notes

Press fit drill bushings should be installed by a qualified machinist using an arbor press to avoid damage to the bushing bore or the jig plate hole. The receiving hole in the jig plate must be machined to the correct interference fit tolerance before installation. Ensure the bushing is driven in squarely and fully seated to prevent movement during drilling operations. Because this is a non-renewable bushing, the jig plate hole should be inspected before pressing in a replacement to verify the bore has not been damaged or enlarged.