Grip 9 pc Thin Wrench Set MM Thin, but strong design, to reach confined working areas where traditional wrenches cant reach. Drop forged, heat treated, chrome plated steel. Sizes: 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16x17, 18 x 19, 20 x 21, 24 x 27, 30 x 32. Includes roll-up storage pouch.