Heli-coil 7571-02-5 Thread Insert Tool Replacement Blades

Product Description

The HELI-COIL 7571-02-5 is a set of replacement blades for the HELI-COIL hand installation tool used with tangless thread inserts in 2-56 UNC applications. These blades are the wear component in hand-driven insert tools and must be replaced when the blade edge degrades to the point where it no longer drives inserts cleanly. The 7571-02-5 fits the corresponding HELI-COIL hand tool body and is sized specifically for the smallest common unified coarse thread standard, the number 2-56. Machinists, maintenance technicians, and assembly professionals working on precision equipment, electronics housings, and small-bore threaded repairs will reach for these blades when routine tool maintenance is due.

These replacement blades are suited for use in light industrial assembly, field repair, and precision maintenance environments where tangless thread inserts are installed by hand. The 2-56 UNC thread size is common in miniature fastener applications such as instrumentation, avionics, consumer electronics, and small mechanical assemblies. When a hand tool blade wears or chips, continued use risks cross-threading or incomplete insert seating, making timely blade replacement a standard part of tool maintenance in any shop running tangless insert work at this thread size.

Key Features

• Replacement blades designed for HELI-COIL hand installation tools used with tangless thread inserts
• Sized for 2-56 UNC minimum thread size
• Compatible with tangless insert style, which eliminates the need for a separate tang break-off step
• Sold as a single package unit, allowing targeted restocking of a single blade set
• Restores proper driving engagement when existing blade edge is worn or damaged

Compatibility

Designed for use with HELI-COIL hand installation tools configured for tangless thread inserts at the 2-56 UNC thread size. Consult your tool body part number to confirm blade compatibility before ordering.

Installation Notes

Blade replacement should be performed by a qualified technician familiar with HELI-COIL hand tool disassembly. Follow the tool manufacturer's service instructions when removing and reseating the blade to avoid damage to the tool body or blade retaining components. Ensure the replacement blade is fully seated and secure before resuming insert installation work. Do not use a worn or improperly seated blade, as this can damage the insert or the parent material thread form.