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The HELI-COIL 2288-9 is a hand installation tool designed to drive threaded wire inserts into pre-tapped holes. It accepts 9/16-12 UNC inserts and delivers the torque needed to seat the coil-type insert flush with or below the host material surface. The tool is used by machinists, mechanics, and maintenance technicians working on metal assemblies where damaged or worn internal threads need restoration. Its hand-operated design makes it practical for field repairs and bench work where power tools are not required or appropriate.
This tool is suited for repair and maintenance applications across industrial, automotive, HVAC equipment, and general mechanical assembly. It is used wherever HELI-COIL or compatible wire thread inserts of the 9/16-12 UNC specification are being installed. The hand tool form factor makes it appropriate for situations requiring controlled installation torque, particularly in materials sensitive to overtightening or in confined work areas where a power driver cannot be used.
Designed for use with 9/16-12 UNC coil-type wire thread inserts. Intended as a hand installation tool for that specific thread size and standard.
Installation is typically performed by a machinist or maintenance technician after the host material has been drilled and tapped to the appropriate HELI-COIL tap size for 9/16-12 UNC. Power down or de-energize any equipment before performing thread repair on components in service. Follow the insert manufacturer's installation instructions for proper mandrel engagement and tang break-off procedure. Do not use power drivers with this hand tool.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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