7024 TiAlN HSS step drill bit set, 4-30 mm

Titanium HSS step drill bit set for burr-free drilling and reaming of metal sheets, pipes and profiles, in plastic case.

1 each of 4-12/4-20/6-30-mm drill bits.

Area of use: Steel, Cr-Ni steel, non-ferrous metals, acrylic glass and plastic up to a wall thickness of 5 mm.

Step drill with spiral grooves (DBGM), chamfer-planer deburring zone (DBGM), ROTASTOP comfort shank and high-quality TiAlN coating for dry machining.