Boneham SF3212IR Slip-fixed Drill Bushing 0.323 in Id

Product Description

The BONEHAM SF3212IR is a slip-fixed drill bushing designed to guide cutting tools with precision in jig and fixture applications. Manufactured from steel and hardened to 60 to 65 HRC, this bushing delivers the wear resistance required for repeat-production drilling, reaming, and similar operations. It carries an inside diameter of 0.323 inches (Letter P), a body outside diameter of 0.500 inches, and a length under the head of 0.75 inches. The headed design seats securely in the jig plate, and the renewable bushing construction allows replacement without scrapping the liner bushing. Lock screw compatibility is rated for LS-1 hardware.

This bushing is suited for use in production drill jigs and precision fixtures in metalworking, machining, and toolroom environments. The slip-fixed (SF) configuration allows the bushing to be locked in position during the drilling cycle and removed for tool changes, making it appropriate for multi-operation setups where the same hole receives multiple cutting tools in sequence. Machinists, tool-and-die makers, and fixture builders working to ANSI standards will find this bushing a direct-fit renewable component in standard liner bushings.

Key Features

• Slip-fixed (SF) industry-code bushing for tool-change multi-operation use
• Inside diameter of 0.323 inches (Letter P) with a tight tolerance of plus 0.0001 to plus 0.0005 inches
• Steel construction hardened to 60 to 65 HRC for extended service life
• Headed design with a head outside diameter of 0.797 inches and head height of 0.25 inches
• Renewable bushing design for drop-in replacement without reworking the jig plate
• LS-1 compatible lock screw interface; meets ANSI standards

Compatibility

Designed as an ANSI-standard slip-fixed (SF) renewable drill bushing compatible with LS-1 lock screws and standard liner bushings accepting a 0.500 inch body outside diameter.

Installation Notes

Installation is performed by toolroom machinists or fixture builders. Ensure the mating liner bushing bore and jig plate are clean and free of chips before pressing or inserting the bushing. Secure with an LS-1 compatible lock screw torqued to fixture manufacturer specifications. Always lock the bushing fully before beginning any cutting operation to prevent rotation or axial movement during the machining cycle.