noun
jig
A mechanical tool used to guide another tool or hold a workpiece in place during manufacturing or assembly.
このジグを使うと、穴あけの位置が正確になる。
Using this jig makes the drilling position accurate.
工場では、溶接用のジグがいくつも並んでいる。
In the factory, several welding jigs are lined up.
Loanword from English 'jig'.