Lenox Step Drill Bit Set, 3 No. of Pieces, High Speed Steel (LXA30930)

Step Drill Bit SetHigh Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and non-ferrous materialsOxide coating prevents chip building, galling and welding on the workpieceRound shanks with flats are ground flat on three sides for increased chuck grip, reducing slippage and help centering the drill in the chuck