TorqueControl Blade Set, 20 Piece. Set includes: Slotted 2.5, 3.5, 4.0mm, Phillips #0, #1, #2, TORX®: T7, T8, T9, T10, T15, T20, Hex Inch 5/64, 3/32, 7/64, 1/8, 9/64, 5/32" & TorqueVario-S Handle 10-50 in/lbs. Blade on a narrow 5/32" Hex shaft. High alloy CVM steel, hardened, satin hard chrome finish. Ergonomic multi-component handle, light and compact. Handle sizes proportioned to optimize torque range. Audible & perceptible click when torque setting has been attained. Includes certificate of calibration. In durable canvas pouch.