Bessey DUO30-8 12-Inch DuoKlamp One Hand Clamp/Spreader
Functions as a One Handed Clamp or Spreader All in One.  Turn the Knob to Change From Clamping to the Spreading Function.  Utilizes Large, Flat Clamping Jaws with Soft Pads that Allows you to Clamp or Spread Sensitive Surfaces, Right Angles and Both Rounded & Pointed Work pieces.  12"