Boneham SF205FU Slip-fixed Drill Bushing 0.189 in Id Steel

Product Description

The BONEHAM SF205FU is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Classified under industry code SF, this bushing features an inside diameter of 0.189 inches (wire size 12) with a tight tolerance of +0.0001 to +0.0004 inches to ensure accurate hole location and repeatable drilling results. The body outside diameter measures 0.3125 inches (5/16 inch) with a length under head of 5/16 inch. Constructed from steel with a head type profile, it is compatible with the LS-1 lock screw and is designed as a renewable bushing, allowing it to be replaced without replacing the liner bushing. Machinists, toolmakers, and fixture builders are the typical installers.

The SF205FU is used in drill jig setups across manufacturing, metalworking, and precision machining environments. Its slip-fixed design allows the bushing to be inserted into a liner bushing and locked in place during the drilling operation, making it well suited for single-operation drilling where the bushing remains fixed throughout the cut. The head style provides a positive stop against the jig plate surface, maintaining consistent positioning across repeated production runs.

Key Features

• Slip-fixed (SF) bushing type for single-operation drill guidance
• Inside diameter of 0.189 inches with precision tolerance of +0.0001 to +0.0004 inches
• Steel construction for durability in production jig environments
• Head type design provides positive stop against jig plate surface
• Renewable design allows replacement without disturbing the liner bushing
• LS-1 lock screw compatible for secure retention during use

Compatibility

Designed as an SF-type slip-fixed renewable drill bushing compatible with LS-1 lock screws and standard liner bushings accepting a 5/16 inch body outside diameter.

Installation Notes

Installation is performed by toolmakers or machinists during jig setup. The bushing is inserted into a mating liner bushing already pressed into the jig plate and secured with an LS-1 lock screw. Ensure the jig plate and liner bushing are clean and free of chips before seating the bushing. Follow applicable shop safety procedures when working with cutting tools and fixtures.