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The HELI-COIL 18551-2-2 is a replacement blade designed for power-driven thread insert installation tools. It supports 8-32 UNC thread size and is compatible with both bulk inserts and strip feed inserts, making it a versatile service component for technicians who install helical thread inserts in production or repair environments. When the cutting blade on a power installation tool wears or breaks, this replacement restores tool function without requiring a full tool replacement. Weighing 0.1 pounds, it is a compact, single-piece consumable part suited for professional use on the shop floor or in the field.
This replacement blade is used in applications where 8-32 UNC threaded inserts are driven into pre-tapped holes using a power installation tool. Typical scenarios include thread repair on aluminum castings, sheet metal assemblies, and plastic housings where thread strength must be restored. The blade is appropriate for both production-line environments and maintenance repair operations. Machinists, assembly technicians, and maintenance professionals working with helical thread inserts will encounter this component as a routine consumable during tool upkeep.
Compatible with HELI-COIL power installation tools configured for 8-32 UNC thread size, and supports use with bulk inserts and strip feed inserts.
Replacement blades should be installed by a qualified machinist or assembly technician familiar with the specific power installation tool model in use. Power down and disconnect the tool from any power source before replacing the blade. Follow the tool manufacturer's blade replacement procedure to ensure proper seating and alignment. Incorrect installation can result in insert damage or tool malfunction.
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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