Pro Tip: Use Your Fingerprint to Quickly Match Torx Screw Sizes

A technician from Mava Autoservis shared an incredibly useful tip on Facebook, demonstrating how to quickly identify the correct Torx (star-shaped) screwdriver bit size. With 24 different Torx sizes ranging from T1 to T100, the traditional approach often involves trial and error. The technician’s method is simple: press a finger firmly onto the screw head to leave an imprint, then compare that mark against the bits on the tool rack to instantly find the matching size. He jokingly calls it “finger science.” The video has already garnered over 1.1 million views, with viewers praising the hack—though some quipped, “Real technicians just eyeball it.” Still, for DIY enthusiasts, this trick is undeniably time-saving and efficient.