Boneham SFT408JH Slip-fixed Drill Bushing 5/8 in Steel

Product Description

The BONEHAM SFT408JH is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Built to industry code SF, it features a 5/8 inch body outside diameter and a 1/2 inch length under the head. The bushing is machined from steel for durability in repetitive drilling operations. It includes a head style configuration with a 7/8 inch head outside diameter and a 1/4 inch head height. The inside diameter tolerance is held to a tight +0.0001 to +0.0005 inch range, making it suitable for close-tolerance work in production and toolroom environments. Compatible with LS-TW-2 lock screws for secure seating in the jig plate.

This bushing is used in drill jigs and fixture plates where repeatable hole location is required. The slip-fixed design allows the bushing to be installed and locked in place with a compatible lock screw, making it appropriate for single-operation drilling setups in metalworking, machining, and fabrication shops. It is a renewable bushing, meaning it can be replaced without disturbing the liner or jig body when worn. Toolroom machinists, fixture builders, and production machining personnel are the primary installers of this component.

Key Features

• Slip-fixed installation method with SF industry code designation
• Steel construction for wear resistance in drilling applications
• Inside diameter tolerance of +0.0001 to +0.0005 inch for close-tolerance guidance
• Head type with 7/8 inch head OD and 1/4 inch head height for positive seating
• Renewable bushing design allows field replacement without jig rework
• Compatible with LS-TW-2 lock screw for secure retention

Compatibility

Designed for use with LS-TW-2 compatible lock screws as stated by the manufacturer. Fits standard slip-fixed liner bushings accepting a 5/8 inch body outside diameter in drill jig applications.

Installation Notes

Installation is performed by toolroom machinists or fixture builders. Ensure the mating liner bushing bore is clean and free of chips or burrs before pressing the bushing into position. Use the appropriate LS-TW-2 lock screw to secure the bushing and prevent rotation during use. Always verify inside diameter letter size matches the intended drill or reamer shank before installation.