The Shank head on this vise is designed to hold Shanks, Tube Pins, and hooks from size 16 to 1/0. This is similar to the REGULAR HEAD but it features new cutting edge design elements. The Left side of the head feature two hook grooves, the right side has a horizontal pin groove, and the jaw is a blunted perfectly for holding shanks. This is the VISE for tying tube, articulated, and Game Changer style flies. Tying to chase Chrome or Bronze just got allot easier…