Starhead screw Driver

A star screwdriver is a handheld tool with a six-sided, star-shaped bit. It is designed to interact specifically with star screw heads that are sized to match corresponding bits exactly. This type of screwdriver prevents cam out during use while creating an ideal amount of torque between screws and the project work area.

The primary benefit of using a star screwdriver is that it resists the urge to cam out during use. The term cam out is used to refer to the action created when a screwdriver or drill bit pops out of the screw head indentations while turning. Some driver’s heads are designed to cam out intentionally to prevent the user from damaging the screw head or bit once the maximum amount of torque needed has been reached between a screw and a stationary object. Consequently, as the bit rotates in the head when using a power drill it can strip and wear down the grooves in the screw, making it impossible to back it out later if necessary.