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Hand tools with fixed or variable openings, used for tightening and loosening nuts and bolts, and for assembling and disassembling objects.
Set made up of hollow cylinders of different sizes and interior profiles that fit onto a ratchet socket wrench.
ratchet socket wrench
Wrench fitted with a pawl and a ratchet: the pawl sets the direction of rotation, while the ratchet lets the handle turn in the opposite direction over the socket.