High Speed Steel 4241 4341 M2 Left-hand Twist Drill Bits Reverse Straight Shank Twist Left-hand Stainless Steel Drill Bits

Our factory manufactures left-hand twist drills, made from 4241, 4341, and M2 grade high-speed steels, all featuring a straight shank design, suitable for drilling operations on stainless steel and other materials. 4241 and 4341 high-speed steels offer balanced hardness and toughness, while M2 steel enhances high-temperature wear resistance. All three base materials meet the cutting performance requirements in stainless steel processing. The left-hand helix structure enables reverse chip evacuation, adapting to special working conditions requiring reverse drilling (such as removing broken wires, reverse tool retraction, etc.). The straight shank design ensures stable clamping with drilling machines, electric drills, and other equipment, reducing deflection during operation. Our factory controls base material composition and cutting edge precision through standardized processes, ensuring stable product performance. These drills are suitable for reverse drilling scenarios involving stainless steel in mechanical maintenance and metal component processing, providing customers with tool options adapted to special procedures.