Boneham SF8816NW Slip-fixed Drill Bushing 7/8 in Id Steel

Product Description

The BONEHAM SF8816NW is a slip-fixed drill bushing conforming to SF industry standards, designed to guide cutting tools accurately through jig plates in precision machining and fabrication applications. Constructed from steel, it features a 7/8 inch (0.8750 inch decimal) inside diameter and a 1-3/8 inch (1.3750 inch decimal) body outside diameter. The bushing includes a head with a 1-51/64 inch outside diameter and a 3/8 inch head height. Length under the head measures 1 inch. Inside diameter tolerance is held to a tight +0.0002 to +0.0006 inches, making this bushing suitable for repeatable, close-tolerance drilling, reaming, or countersinking operations. It is installed by a licensed machinist or tool-and-die technician and used as part of a drill jig assembly.

This slip-fixed bushing is used in drill jig tooling where a renewable liner bushing is already installed in the jig plate. The SF type slips into the liner and is locked in place with a compatible LS-2 lock screw (sold separately). Typical applications include production drilling, reaming, and boring operations in metalworking shops, aerospace fabrication, and general manufacturing environments. The renewable design allows the bushing to be replaced as it wears, extending the service life of the jig plate assembly without requiring full jig rework.

Key Features

• SF industry code slip-fixed design for use with renewable liner bushings
• Steel construction for wear resistance in repetitive drilling operations
• Inside diameter tolerance of +0.0002 to +0.0006 inches for close-tolerance tool guidance
• Head type with 1-51/64 inch head OD and 3/8 inch head height for positive seating
• LS-2 compatible lock screw interface for secure retention in the liner
• Renewable bushing design supports long-term jig serviceability

Compatibility

Designed for use with SF-style renewable liner bushings and LS-2 series lock screws in standard drill jig assemblies conforming to SF bushing industry specifications.

Installation Notes

Installation is typically performed by a machinist or tooling technician. Ensure the liner bushing and jig plate bore are clean and free of chips or burrs before inserting the slip-fixed bushing. Secure the bushing with a compatible LS-2 lock screw; do not attempt to press or force the bushing into an undersized liner. Follow applicable shop safety and machine guarding practices whenever the jig is placed in service.