KnKut 13 Piece Metric Jobber Length Drill Bit Set M1 - M7 x 0.5MM KnKut 13 Piece Metric Jobber Length Drill Bit Set M1 - M7 x 0.5MMPremium grade KnKut Drills are manufactured from a high grade Molybdendum high speed steel, that has high vanadium content. KnKut Performance Drills are salt nitride treated, actually penetrating the tools surface giving KnKut Drills the hardness to drill tough materials such as stainless steel and titanium alloy.Made In USANo Center Punch or Pilot Hole requiredRounder More Accurate HolesLowest Cost Per HoleDrills Stainless Steel and Titanium AlloySizes: 1.00m - 7.0m by 0.5m 13KK5M