M14x1.5 Drain plug repair kit includes: A silver & deming drill you need a 1/2" drill motor to turn the drill if you have clearance. Also includes Counterbore, Tap, Tap Guide, install Driver 5 inserts 9.4mm p/n 14153. It is possible to turn tools in this kit with 12 point sockets. 12 point sockets will hold a square.  2) CounterBore square = 7/16 inch 12 point socket. 3) Tap square = 7/16 inch 12 point socket . 4) Driver tool square = 3/8 inch 12 point socket.