Faithfull Professional 19 Piece Cobalt HSS Drill Bit Set 1mm - 10mm FAIMSET19COB
Faithfull Pro M2 HSS Drill Bit 19 Piece Set, 1 - 10mm. Professional Cobalt jobber drills are manufactured from M35 HSSE grade steel with a 5% cobalt content for increased heat resistance and cutting performance.