Dormer F302 Hss Dienuts Metric Coarse Thread 20.0 X 2.50 Pitch

Bright finish - prevents work piece material from sticking to the cutting edges Premium HSS material - high speed steel provides superior performance and extend tool life Die Nut - designed for repairing damaged external threads by re-cutting the original thread form 6g tolerance - designed to create accurate screw threads to 6g tolerance Hand die - should only be used for repairing threads by hand with the appropriate imperial size spanner