plural of hex head wrench

(US) A traditional double-ended bicycle wrench with a selection of usually 10 sizes—five on each end—arranged in a ball form.

plural of dog bone wrench

Alternative form of throw a wrench in the works.

Alternative form of flare-nut wrench

(engineering) An open spanner (wrench) to tighten fragile nuts, such as flare nuts, not accessible to a ring spanner (box end wrench) or box spanner (tube spanner).

(idiomatic, US) Synonym of throw a spanner in the works.

(idiomatic, US) Synonym of throw a spanner in the works.

present participle of throw a wrench in the gears

present participle of throw a wrench in the works