Catalog number: 022171 Features: ●Wera's unique surface contact structure called Hex-Plus does not damage the inside of the hexagonal screw hole, contributing to a longer screw life. ●High torque transmission rate also improves work efficiency. Specifications: ●Set contents (inches): 5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 ●Set contents (pieces): 9 Material/Finish: ●Special alloy steel (surface treatment: black laser) Set contents/Accessories: ●Holder Caution: ●The ball part cannot be tightened.
