A ratchet screwdriver is a type of screwdriver that features a mechanism allowing the handle to rotate back and forth without the need to remove the tool from the screw. This feature makes it easier and faster to tighten or loosen screws, as the user does not need to reposition the screwdriver after each turn. Ratchet screwdrivers are commonly used in tasks that involve frequent screw adjustments, such as assembly work or home repairs, as they provide more comfort and efficiency. The ratchet mechanism can often be adjusted for different directions of turning, adding versatility.

英語での「ratchet screwdriver」の定義と意味

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