1 Socket set GP WERKSTATT, force 1″, 8 pieces, Socket set, force 1″, 8 pieces. CR-M0, 22-41x 88 mm, Phosphated black Description: Socket set, force 1″, 8 pcs. Sizes 27-30-32-36-38-41-46-50 mm, with bore and ball. Impact sockets suitable for heavy work with air compressor. Material: Chrome-Molybdenum, phosphorized. Powerful (Impact) socket set.