box wrench

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  • noun

Synonyms for box wrench

a wrench with a closed loop (a socket) that fits over a nut or bolt head

References in periodicals archive ?
The Combat Optic Tool Optimized has a 3/8-inch and 10mm box wrench that will work with LaRue Tactical and Aimpoint 3X Twist mounts, as well as a 1/2-inch open face wrench for Leupold, Badger Ordnance, Warne and other 1/2-inch cross-bolt mounts.
* Open-end wrenches provide gripping power on two sides of the head with another side open so the wrench can be placed on a nut, which might not be accessible to a closed or box wrench. Open-end wrenches have different size openings on each end and should fit the nut exactly to prevent mutilating the nut edges.
These innovative tools include an open-end wrench at one end and a ratcheting box wrench at the other.
box wrench over the shank of a short screwdriver bit.