Fast, precise push-button adjustment with safety lock. 12-position notches. The closed position of the ergonomic comfort grip handles increases the tightening power. High torsional strength. Slim-profile self-gripping nose. 62 HRc high-frequency treated jaws. Finish: - Chromed, bi-material ergonomic grips: 181A.CPE. - Varnish finish, PVC grips: 181A.G.