HMH’s Premium Tube Fly Tool has a pin vise with a thumb screw that locks each pin down. The tool fits into almost any type of fly tying vise ( while we’re not 100% it fits in every tool that exists, we’ve yet to see one that doesn’t work! ). The pins are tapered and sanded to fit most tubes. The pins and tool can also be used as an extended body tool to remake bodies for large mayflies. This is the original tool created and sold for dozens of years. Made in Maine/USA.