spiral ratchet screwdriver

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Noun1.spiral ratchet screwdriver - a screwdriver with a ratchet (so the blade turns in only one direction) and a spiral in the handle (so the blade rotates) with downward pressure on the handle
rachet, ratch, ratchet - mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
screwdriver - a hand tool for driving screws; has a tip that fits into the head of a screw