VARIO tapper set for through-holes

4-piece, 1 x 5/16", 3/8", 1/2", 5/8" each in cylindrical packaging. High strength tool steel for long tool life (64 HRC), special impact wrench-compatible cutting geometries, and a TiAIN (titanium-aluminum-nitride) coating. The insert tools feature low wear and low friction and are heat-resistant. As a result, they can be used at high speeds and impact in high strength steel (up to 130 ksi). Optimally suitable for the following material: unalloyed and alloyed steels of up to 130 ksi, aluminum, and brass.