HMH's latest and greatest addition to their vise line. The TRV is the first vise HMH has made with a True inline Rotary action. This means the hook shank can be aligned with the axis of rotation of the vise, allowing materials to be held while the hook is rotated. Great for dubbing loops, chenille, tinsel, or palmering a hackle! Jaws are cast in true HMH style out of tool steel. Other than the jaws, all parts are stainless steel, brass or powder-coated for protection and durability. The jaws are with black oxide ( gun-blueing ) coating. The TRV comes only with the impressive brass palm wheel. The TRV VISE features, infinite head angle adjustment, Longest tying platform for better tying, Hardened tool steel jaws, Stainless steel chasis, Ulta-smooth 360 degree rotary action, Smooth disc-drag rotary tension adjustment, Large solid brass palm wheel, Fast one-hand operation clamping knob. Lifetime Guarantee.