Milwaukee Shockwave impact duty titanium drill bits with red helix are engineered for impacts and drills. Designed with a variable helix with an aggressive 35 degree helix angle which ends at 5 degree, , the impact duty titanium drill bits with Red Helix provide rapid chip removal to limit heat buildup to stay sharper longer. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Titanium coating can be used in all drilling applications to give more life versus black oxide drill bits. Includes 1 each: 1/8 In., 5/32 In., 3/16 In. and 1/4 In.