Ruko's Terrax A215215 Twist Drill Bit Cobalt, 25 Pieces, Sheet Steel Cassette

ManoMano

Terrax A215215 Helicoidal Drill Bit Set Cobalt 25 Pieces Steel Case (Import Germany) - High-performance helicoidal drill bits with increased cobalt content… See the presentation.

Amazon

The cobalt content ensures higher heat hardness resistance The cobalt content ensures a higher heat resistance The completely ground bits have increased drilling precision