Boneham SFT406JY Slip-fixed Drill Bushing 25/64 in Id

Product Description

The BONEHAM SFT406JY is a slip-fixed drill bushing designed for precision hole-location work in jig and fixture applications. It features a 25/64 inch inside diameter with a tight tolerance of +0.0001 to +0.0005 inches, a 5/8 inch body outside diameter, and a 3/8 inch length under head. Constructed from steel, this headed, renewable bushing installs by slip-fit into a liner bushing and locks in place via a compatible LS-TW-2 lock screw. Machinists, tool-and-die makers, and fixture builders rely on this style of bushing to guide drill bits, reamers, and other cutting tools repeatedly and accurately through production runs.

The SFT406JY suits production and toolroom environments where bushings must be changed out between operations without disturbing the fixture plate. It is appropriate for use in drill jigs requiring repeatable hole location across multiple workpieces. The renewable design allows worn bushings to be swapped quickly, minimizing downtime. Typical applications include metalworking shops, precision machining operations, and custom fixture builds where consistent bore guidance is critical to part quality.

Key Features

• Slip-fixed installation method for fast, tool-assisted bushing changes in production jigs
• Inside diameter tolerance of +0.0001 to +0.0005 inches for precise tool guidance
• Steel construction for durability in repetitive drilling and reaming operations
• Headed design with 7/8 inch head outside diameter and 1/4 inch head height for positive seating
• Renewable bushing — removable and replaceable without liner bushing replacement
• Compatible with LS-TW-2 lock screw for secure retention during use

Compatibility

Designed for use with LS-TW-2 compatible lock screws. Intended as a renewable slip-fixed bushing for standard drill jig liner bushings sized to accept a 5/8 inch body outside diameter.

Installation Notes

Installation and removal should be performed with the appropriate lock screw and a suitable bushing driver to avoid damage to the bore or seating surfaces. Ensure the liner bushing and fixture plate are clean and free of chips before inserting the bushing. Always secure the lock screw fully before beginning any drilling or reaming operation to prevent rotation or pullout. Follow applicable shop safety procedures and power down or secure any machinery before servicing jig components.