HSS TWIST DRILL
-High quality drills have straight shanks and are accurately ground then carefully tempered.
-Bright finished,with exactly the proper cutting angle at the tip.
-Flutes are sharp with the proper spiral and finished cutter edges.
-The finest grade tool steel,tempered for maximum hardness and endurance.
-Sizes 80 to 39 (.0135inch/0.343mm to .0995inch/2.528mm)
-Pack of ten piece