Patented Auto-Bite™ lever enables one handed jaw adjustment,Thumb adjust Auto-Bite™ knob to engage or disengage Auto-Bite™ lever,Slim jaws provide 40% greater access,With the Auto-Bite™ lever engaged, simply squeeze the handles and the jaw automatically adjust to a precise grip,Aggressive tooth design increases torque transfer,Grip Zone™ handles for non-marring grip,V” jaws and self-locking adjustment,Ergonomic handles with tether point increase overall comfort and safety