Sutton BLUE BULLET Twist Drill Bit Set Metric 25 PCS 1-13MM X 0.5MM D102SM3Sutton Tools Blue Bullet jobber drills are a general purpose drill bit designed for machine and hand held drilling ferrous metals. The blue finish reduces chip build up on the cutting edge and is a better choice when drilling ferrous materials. 118 Degree Web Thinned Point Reduces The Amount Of Thrust Required Precision Engineered Parallel Shank For Accurate Hole Size Made From M2 High Speed Steel (HSS) Offering The Best Combination Of Strength, Hear