Precision Twist C26M42CO 26 Piece M42CO Bronze Cobalt Screw Machine Length Drill Set 135 Degree Split Point Letters A-Z 099961

This Precision Twist C26M42CO short length drill bit set contains 26 cobalt steel drill bits, including one each of letter sizes A through Z, with a gold oxide finish and a 135-degree split point for increased rigidity in heavy feed-rate drilling applications on hard ferrous materials. The cobalt steel provides extended tool life compared to high-speed steel drill bits and maintains the tool’s toughness and hardness even in high drilling temperatures. The gold oxide finish acts as a lubricant and provides wear resistance. Compared to standard drill bits, these tools have a thicker web for increased strength and rigidity. The self-centering 135-degree split point penetrates hard material without a pilot hole and produces smaller chips, which are less likely to clog a hole than a 118-degree point. These short length drill bits have a drilling depth of up to 2.5 times their diameter. The round shank accommodates most drill chucks. The set comes in a metal index case with labeled compartments for identification and organization. Drill bits conform to American National Standards Institute (ANSI) standards.