High Speed Steel M35 grade (5% cobalt in alloy). Reduced heat conductivity increases lifespan of drill bits.

Content: Drill Bit HSS-Cobalt DIN-338:

1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.2 mm, 3.5 mm,
4 mm, 4.2 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm,
7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm,
Center punch - 4 mm;

Metal box Multibox®: size-S