Heli-coil 3695-5 Tang Break Off Tool 5/16-18 Unc

Product Description

The HELI-COIL 3695-5 is a tang break off tool designed for use with 5/16-18 UNC thread inserts. After a HELI-COIL thread insert is driven into a tapped hole, the driving tang must be snapped off cleanly to complete the installation. This tool is engineered to break the tang at the notch without damaging the insert or the surrounding material. It is a required step in any proper HELI-COIL thread repair or new-thread installation job and is matched specifically to the 5/16-18 UNC thread size.

This tool is used in residential and commercial maintenance, manufacturing, and field service applications wherever 5/16-18 UNC HELI-COIL thread inserts are installed. Common install scenarios include engine repair, equipment maintenance, and structural fastener repairs where a stripped or damaged thread is being restored to full load-bearing capacity. Machinists, mechanics, and maintenance technicians working with HELI-COIL insert kits will use this tool as the final step in the insert installation process.

Key Features

• Matched to 5/16-18 UNC thread insert size for correct tang engagement
• Snaps the driving tang cleanly at the notch without disturbing the installed insert
• Required finishing tool for HELI-COIL thread insert installations
• Designed for use in both field repair and shop environments
• Compact tool suited for use in confined or hard-to-reach fastener locations

Compatibility

Designed for use with HELI-COIL thread inserts in the 5/16-18 UNC thread size. Consult the insert manufacturer specifications to confirm compatibility with specific insert series before use.

Installation Notes

This tool is used by machinists, mechanics, and maintenance technicians after a thread insert has been fully driven into the tapped hole. Insert the tang break off tool into the installed insert and apply a sharp downward or tapping force to snap the tang free at the notch. Retrieve any loose tang material from the bore before reassembly. No power tools, heat, or torque specifications are required for this operation.