Evolution Cyclone Annular Mag Drill Cutters 6-Piece Kit (25mm Max Depth)

Made from S360 Tungsten-Molybdenum HSS, Evolution Cyclone Annular Cutters outperform standard HSS, Cobalt or Ti-Ni coated cutters. Evolution's Cyclone Annular cutters can be heat treated up to 68 RC and still retain their tempered hardness.

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