Milwaukee 48-89-1058 Thunderbolt 7/16-Inch Black and Bronze Twist Drill Bit

Milwaukee's Thunderbolt Jobbers Length twist drill bits are designed for performance in low to high tensile strength materials, stainless steel and cast iron. Thunderbolt twist drill bits are made from premium industrial grade steel with heavy duty cutting surfaces that powers through deep or shallow holes with lightning speed. A unique flute form is used for greater chip ejection and improves coolant to the drill point. Thunderbolt twist drill bits have a self-centering 135 degree split point which reduces walking at the drill point. A black and bronze coating reduces friction. This bit has a 3/8 inch shank. One per package.FEATURES: 7/16 in. diameter, Jobbers length. Friction reducing black and bronze treatment. Premium industrial grade steel. Self-centering, 135 degree split point reduces walking at the drill point