AN UNBIASED VIEW OF SCREWS

There are two forms of hex screws: An Allen screw contains a hexagonal indent in the head, necessitating an Allen wrench, and one other kind has no indent from the hexagonal head and must be applied or taken off which has a socket wrench.You can't use a pozi driver with a Philips generate screw, and You can not make use of a Philips driver with a p