Attached directly to vise, No. 36 mini valve frees space on machine table while simplifying vise operation. Over-center snap action with double detente gives sure response. Interchangeable inlet and exhaust ports allow air connection on either side. Valve works with single-acting vises, air-operated cross-hole drill jigs, or any single-acting air mechanism. It replaces 3-way foot treadle or hand valve.