Boneham SF4822ID Slip-fixed Drill Bushing 0.295 in Id

Product Description

The BONEHAM SF4822ID is a slip-fixed drill bushing designed to guide cutting tools with precision during drilling, reaming, and boring operations. Manufactured from steel, this bushing carries the industry SF designation and features an inside diameter of 0.295 inches with a close tolerance of +0.0001 to +0.0005 inches to ensure accurate tool guidance. The body outside diameter is 0.75 inches and the length under head measures 1.375 inches. It includes a head configuration and is compatible with LS-1 lock screws for secure retention in the jig plate. Licensed machinists, toolmakers, and precision fabricators are the primary installers of this component.

This slip-fixed bushing is used in drill jig applications across metal fabrication, aerospace component manufacturing, and general precision machining environments. The SF-style slip-fixed design allows the bushing to be inserted and removed from a liner bushing during production, making it suitable for operations that require tool changes between process steps such as drilling followed by reaming. It is appropriate for both prototype and production jig fixtures in shop environments.

Key Features

• Inside diameter of 0.295 inches with tight tolerance of +0.0001 to +0.0005 inches for accurate tool guidance
• Steel construction for durability under repeated drilling operations
• Slip-fixed SF industry designation allows removal and replacement during multi-step operations
• Body outside diameter of 0.75 inches and length under head of 1.375 inches
• Head outside diameter of approximately 1.047 inches with a head height of 0.25 inches
• Compatible with LS-1 lock screws to secure the bushing against rotation and pullout
• Renewable bushing design supports replacement without retooling the jig plate

Compatibility

Designed as a slip-fixed replacement or new-build component compatible with LS-1 lock screws and standard liner bushings accepting a 0.75 inch body outside diameter.

Installation Notes

Installation is performed by toolmakers or machinists during jig plate assembly or bushing replacement. Power down all connected machinery before servicing the jig fixture. The bushing should be pressed or hand-fitted into the liner bushing and secured with the appropriate LS-1 lock screw to prevent rotation during use. Do not force the bushing into an undersized or damaged liner, as this can compromise tool guidance accuracy.