As I informed you right before, the safety hex screwdriver is a hex screwdriver but by using a hole in the center, built to be tamper-evidence.
Slotted: This very common kind incorporates a straight line in the Center https://matteoolqm031640.isblog.net/how-much-you-need-to-expect-you-ll-pay-for-a-good-types-of-screw-heads-46791100