Wiha Precision Hex Screwdriver 2.5 mm Round 26325

THe ergonomics of these drivers are perfect. The handle is comfortable and the top which allows to spin and does not rub on your hand is great. We install and remove 100.s of screws a day with it. The down side is it is not hardened enough on the tip and therefor even soft SHCS wear the tip down and we have to grind back every few weeks to ensure hex has sharp corners and the screws donot strip in the part

Great tool... if its good enough for Krieghoff ....in their K-80 gun kits its good enough for me also...