Mini and triple hole jig, designed to insert 1/4" copper couplings. This hole jig provides stable support with its reinforcement columns. With exact instructions for where to place the drill stop collar and the distance from the edge board. For example, a 1/2" thickness of the board, 1/4" of the hole jig past the end of the board, and a 3 5/16" stop is for the drill stop collar on the drill bit.
The product was designed by
1976westy