noun
C-clamp; G-clamp
A clamp shaped like a mantis shrimp, used in woodworking and metalworking to hold workpieces.
作業台に板を固定するためにシャコ万力を使った。
I used a C-clamp to secure the board to the workbench.
Standard katakana-kanji hybrid spelling for this tool name.
Rare kanji form using 蝦蛄 (shako, mantis shrimp) for the clamp's shape.
万力 is a general vise; シャコ万力 is a specific type of clamp with a C- or G-shaped frame.
Compound of シャコ (shako, mantis shrimp) and 万力 (manriki, vise), from the clamp's resemblance to the crustacean's shape.