At last - a tool designed specifically for tightening and loosening propeller spinner style nuts on planes, multi-rotors or anything else with opposing holes in the nut! How often have you searched around for just the right sized screwdriver or Allen key to tighten a spinner nut, only to bend it when you do? This handy tool is designed to take all of the hassle out of the job and is a perfect size to fit into any tool box. Simply locate the pins into the holes on the spinner nut, close the pliers and twist - it couldn't be easier! While you're about it, why not buy one for your workshop and one for the flight box? Specs: Max opening: 20mm Size: 80 x 40 x 8mm (closed) Weight: 27g