Power Tank Monster Valve Tap - TAP-1400 - AASTAP-1400
1/4 inch NPT tap;Bright Steel;Used when installing Monster Valves; California Residents: WARNING This is a high quality bright steel 1/4 NPT tap for tapping the mounting hole for your Monster Valves. This is a tap that youll probably use for a lifetime. Cuts through steel and aluminum. The hole size to drill for this tap is 7/16.