Krino Cobalt HSS Twist Drill Bit 4.5mm Display Pack

This Krino Cobalt HSS Twist Drill Bit is supplied in retail packaging with a hanging hook. It has the following specification:

Diameter: 4.5mm
Working Length: 47mm
Overall Length: 80mm

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.