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Look no further than Chicago-Latrobe Screw Machine Drill #40 HSS for precision drilling at its finest. With a bright finish that resists wear even after re-sharpening, these bits provide outstanding durability and performance. The spiral flute design makes it easy to remove chips as you work, keeping your drill bit clean and efficient. Perfect for a wide range of applications including hobbyists, mechanics, engineers, and jewelry makers, Chicago-Latrobe delivers superior quality that won't let you down. Don't compromise on quality - invest in the best with Chicago-Latrobe Screw Machine Drill #40 HSS today!