THE BEST SIDE OF SCREWS

There's two different types of hex screws: An Allen screw has a hexagonal indent in the head, requiring an Allen wrench, and the other kind has no indent inside the hexagonal head and has to be utilized or taken out by using a socket wrench.You can't use a pozi driver on the Philips travel screw, and You can't utilize a Philips driver on a pozi pus