Boneham CB00001234 Slip-fixed Drill Bushing 0.189 in Id

Product Description

The BONEHAM CB00001234 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 with a tight tolerance of +0.0001 to +0.0004 inches, ensuring accurate and repeatable hole locations. The body outside diameter measures 0.3125 inches and the length under head is 0.75 inches. Constructed from steel with a headed design, this bushing is renewable and compatible with LS-1 lock screws. Machinists, tool and die makers, and precision fabricators install this component in drill jigs to maintain consistent hole positioning across production runs.

This slip-fixed bushing is suited for use in precision drill jig setups where the bushing must be locked in place during the drilling operation. The SF designation indicates it is pressed into a liner bushing and secured with a lock screw rather than being a press-fit-only component. Typical applications include production drilling, reaming, and boring operations in metal fabrication environments where hole location accuracy and bushing renewability are required.

Key Features

• Inside diameter of 0.189 inches with tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Body outside diameter of 0.3125 inches and 0.75 inches length under head
• Steel construction for durability in production drilling environments
• Headed design with 35/64 inch head outside diameter and 1/4 inch head height
• Renewable bushing — replaceable without disturbing the liner bushing
• Compatible with LS-1 lock screws for secure fixture installation

Compatibility

Designed as an SF-type slip-fixed renewable drill bushing compatible with LS-1 lock screws, for use in standard drill jig liner bushing setups.

Installation Notes

Installation is performed by tool and die makers or machinist-level trades working with drill jig fixtures. Before servicing or replacing the bushing, ensure the machine is fully de-energized and the workpiece is secured. Use the appropriate LS-1 lock screw to secure the bushing in the liner; do not attempt to press this bushing directly without a liner bushing in place. Follow applicable shop safety and fixture maintenance procedures when replacing worn bushings.