Aluminium Fly Tying Tools Stand. Handy fly tying tool holder that mounts on a vise stem, adding more working space and organizing your tools nicely. Overall length is 5.2 inches/ 13cm. Fits on almost all standard vise stems diameters from 8 mm/0.32 inch to 10mm/ 0.4inch. Great for organizing tools such as scissors, bobbin holders, whip finisher, glue, hackle pliers, threader, etc.