Craftsman 150-Piece Mechanics Tool Set, # 38845 Mechanic's Tool Set includes Metric and Standard Tools The Mechanic's Tool Set comes in a convenient and portable briefcase style plastic carrying case. 53 wrenches and specialty tools Made in USA - Lifetime Warranty (35) 1/4-inch drive tools, (49) 3/8-inch drive tools, (13) 1/2-inch drive tools