Heli-coil 7751-2.2 Thread Insert Installation Tool M2.2

Product Description

The HELI-COIL 7751-2.2 is a hand installation tool designed for driving wire thread inserts into pre-tapped holes. It accepts M2.2 x 0.45 metric coarse thread inserts and uses a Type I threaded mandrel to engage and wind the insert into the host material. At 2.4375 inches overall length, the tool is compact enough for work in confined assemblies. Technicians in manufacturing, maintenance, and repair operations use this type of tool to restore or reinforce stripped threads in metal, plastic, and composite components without replacing the host part.

This tool is suited for hand installation of wire thread inserts in light assembly and repair applications involving M2.2 x 0.45 metric coarse threads. It is typically used where precision thread restoration is required in small fastener applications, such as electronics housings, instrument enclosures, and light mechanical assemblies. The threaded mandrel design allows the installer to seat the insert at the correct depth before breaking off the drive tang.

Key Features

• Type I threaded mandrel engages wire thread inserts for controlled hand installation
• Sized specifically for M2.2 x 0.45 metric coarse thread inserts
• Overall length of 2.4375 inches suits confined work areas
• Hand-operated design requires no power tools or special drives
• Compatible with standard wire thread insert installation workflow including tang break-off after seating

Compatibility

Designed for use with wire thread inserts in M2.2 x 0.45 metric coarse thread size. Intended for hand installation applications where a threaded mandrel-style driver is specified.

Installation Notes

This tool is typically used by maintenance technicians and assemblers performing thread repair or reinforcement. Before installing a wire thread insert, ensure the host hole has been drilled and tapped to the correct insert-tap specification for the M2.2 thread size. Wind the insert onto the mandrel, drive it into the tapped hole by hand until flush or just below the surface, then break off the drive tang using the appropriate tang break-off tool. Do not use power drivers with this hand installation tool.