Wiha 26050 Slotted Screwdriver with PicoFinish Handle, 0.8 x 40mm - Precision Screwdriver for Electronics, Jewelry & Small Appliances Repair - Ideal for DIY, Watchmaking & Home Improvement Projects

I needed a .8mm flat head screwdriver to remove a screw in my son's Movado watch in order to replace the battery.I never realized how small a jeweller's screw can be. I needed a magnifying glass to see what I was doing, but this screwdriver did the job.I'd never heard of Wiha, but I read some reviews, and it turns out that this company does make great quality tools. Highly recommend.