The Gyrokey is a 3D-printed screwdriver handle that can spin like a top, but still offers a great grip for applying a good amount of torque. I created it for sports hydrofoils, but it's great for many other applications as well. The Gyrokey Classic holds one quarter inch screwdriver bit. If you frequently use more than one size, check out the Gyrokey Double-Decker. Print time is only about 2 hours, so even if you don't have a printer of your own, you should be able to use one at a maker space (Finnish libraries often have 3D printers available for public use) or on a friend's printer. Even the most basic $100-$150 price range FDM 3D printers can do this print for you. You can find the 3D model file for the Gyrokey Classic and Double-Decker on MyMinifactory: https://www.myminifactory.com/object/3d-print-gyrokey-classic-revolutionary-screwdriver-241639 https://www.myminifactory.com/object/3d-print-gyrokey-double-decker-revolutionary-twin-head-screwdriver-241640 This is the perfect tool if you are wingfoiling, windfoiling, prone foiling, SUP foiling, wakefoiling or e-foiling. The spinning top design makes assembly and disassembly a lot more fun (and the Gyrokey makes a great fidget toy for your desk at work too). There's already a more portable "Gyrokey Go" in the pipeline, so please subscribe and click the notification bell to find out when it's available. I have also uploaded two assembly videos. The first one shows the assembly and disassembly of my Takuma Kujira foil using the standard Takuma aluminum mast, demonstrating the use of the Gyrokey Classic: https://www.youtube.com/watch?v=qGgXnBaq3pg The second one builds the foil using the Project Cedrus carbon mast with a custom Takuma fuselage, demonstrating the use of the Gyrokey Double-Decker: https://www.youtube.com/watch?v=1T_Qzn0Uxpw
