IMPA 631086 HAND TAPS set of 3 pcs HSS METRIC COARSE M42 x 4,5

This Tap Set is ideal for a wide range of metals including carbon steel, tool steel, alloy steel, stainless steel, cast iron, aluminum, and bronze. They are also great for re-threading and repairing damaged threads. The HSS (High Speed Steel) taps are made of M42 Cobalt alloy which has a high resistance to wear and can be used on even the hardest metals. The set includes three taps: a taper tap (for starting the thread), an intermediate tap (for continuing the cut), and a bottoming tap (for creating a smooth, finished bottom thread).