Manufacturer suggested retail price. $39.48 Features and Benefits:+ Ideal for extracting broken right-hand threaded studs and bolts + Perfect companion drill for straight flute screw extractors + Special high-temperature surface treatment for superior wear resistance + Ideal for harder carbon and alloy steels + 118¦ point for general purpose drilling + Designed for use in reversible drills, lathes and milling machines Drill Bit Sizes & Stats:Diameter Over all Length Flute Length Use with St. Flute Extractor 1/8 1-7/8" 7/8" No.1 3/16 2-3/16 1-1/8 No.2 1/4 2-1/2 1-3/8 No.3 5/16 2-3/16 1-5/8 No.4 3/8 3-1/8 1-13/16 No.5 Lifetime warranty does not cover abuse