Boneham H324HU Press Fit Headed Drill Bushing Steel

Product Description

The BONEHAM H324HU is a Type H press fit headed drill bushing manufactured from steel for use in jig and fixture applications. It features an inside diameter of 0.277 inches (Letter J), a body outside diameter of 0.5 inches, and a length under head of 0.25 inches. The head outside diameter measures 39/64 inches and the head height is 7/32 inches. This bushing is pressed directly into a drill jig plate without the need for a liner bushing, making it a fixed, non-renewable installation. Machinists and toolmakers install these bushings to guide drill bits, reamers, and other cutting tools with precision during production runs.

Type H headed drill bushings like the H324HU are suited for jig plates where the head must seat flush or above the jig surface to locate the bushing axially. They are used in metalworking shops, tool rooms, and production machining environments where consistent hole location is required across repeated operations. This bushing is non-renewable and intended for permanent or long-term fixture installations where the bushing body is pressed directly into a hardened or unhardened jig plate.

Key Features

• Press fit installation — no liner bushing required
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Steel construction for durability in production machining environments
• Headed design provides positive axial location in the jig plate
• Inside diameter designation: Letter J (0.2770 inches decimal)
• Non-renewable fixed bushing — designed for permanent press fit installations

Compatibility

Designed as a standard Type H press fit headed drill bushing for use in drill jigs and machining fixtures requiring a 0.5 inch body outside diameter and 0.277 inch inside diameter tool guide.

Installation Notes

Installation is performed by pressing the bushing into a prepared hole in the jig plate using an arbor press or similar pressing equipment. Ensure the receiving hole is sized to the appropriate press fit tolerance before installation. Once pressed in, this bushing is not designed for removal and replacement. Follow standard toolroom practices and applicable shop safety procedures when pressing bushings into jig plates.