What it is
The Hareline Griffin Montana Pro is a rotary fly tying vise built from machined aluminum with steel and stainless components, and it uses heat-treated steel jaws. The cam-action jaws lock down positively with adjustable tension, so you can clamp a hook rigidly and still get high torque without the head flexing as you work.
What to tie with it
Use it any time you need the hook held solid while you build thread bases, stack materials, and tie in wire, tinsel, or other ribbing. The 360-degree rotating head lets you turn the fly for access instead of regripping the hook, and it’s especially handy for wrapping hackle by rotation and getting uniform resin or head cement coatings by spinning the fly as it cures.
Flies and the fish they're for
This style of true rotary, rigid-holding vise is a workhorse for tying everything from small freshwater trout flies to larger streamers and saltwater patterns where you’re putting real torque on materials. Rotary access and a solid jaw clamp are also useful when you’re building durable flies for species like bass, stripers, and redfish, where clean wraps, tight ribbing, and even epoxy or UV resin work matter. If you’re tying tube flies, a rotary setup like this is commonly chosen because it makes it easier to rotate the work for consistent wraps and coatings.