This Krino Cobalt HSS Twist Drill Bit Set is supplied in a handy plastic carry case, providing easy storage and transportation.
Contains the following sizes: 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10mm.
Krino Cobalt HSS Twist Drill Bits are ground from the solid with 5% cobalt (Co). The added 5% cobalt improves the red hardness (heat resistance) of the drill bit and results in significantly extended life.
The 130° self-centring split point for drilling into alloy steel, cast iron, stainless steel and metals up to R = 1200 N/mm². Produced in accordance with DIN 338 for high precision tolerances and geometric accuracy.