• TIGHTENING PERFORMANCE: large tightening capacity adjustable with rack. Easy motion of the axis. Soft blocking device; the tightening power is adjustable with a wheel device. Easy unlocking by back lever. JAWS PERFORMANCES: high resistance to wear thanks to the chrome vanadium forged steel jaws. Powerful tightening thanks to the jaws teeth on the whole length. Round pieces easy to tighten in axial position thanks to the slot on the upper jaws. Tightening of any shape thanks to the articulated jaws with straight and round teeth.