19-Piece set of HSS-E jobber drills with straight shank DIN 338 N 135° bronze 4xD for alloyed steels <1620 N/mm², stainless steel, ductile iron <1000 N/mm², titanium and nickel alloys <1200 N/mm² and metal ceramics <550 HB A777: 1.0 mm - 10.0 mm x 0.5 mm A777: 1.0 - 10.0 x 0.5 mm