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wrenches [1]

Hand tools with fixed or variable openings, used for tightening and loosening nuts and bolts, and for assembling and disassembling objects.
wrenches [1] Wrench whose jaws’ gap is adjustable for gripping nuts, bolts or plumbing fittings of various sizes. Small striated wheel controlling the movable jaw’s gap. Lower branch of the fork, whose gap enables the tool to adjust to the size of the object to be gripped. Upper branch of the fork, which is an extension of the tool’s handle.

crescent wrench

Wrench whose jaws’ gap is adjustable for gripping nuts, bolts or plumbing fittings of various sizes.

thumbscrew

Small striated wheel controlling the movable jaw’s gap.

movable jaw

Lower branch of the fork, whose gap enables the tool to adjust to the size of the object to be gripped.

handle

fixed jaw

Upper branch of the fork, which is an extension of the tool’s handle.