Most ratcheting screwdrivers use a gear-and-pawl system. Depending on the direction you set the screwdriver to, the pawl will engage with the gear, forcing the tip to rotate with the handle.
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Screwdrivers are one of the most common hand tools used by DIYers and pros, so when the holidays roll around, consider this seven-piece set of slotted and Phillips screwdrivers. These screwdrivers ...