Taps and dies are tools for cutting threads. A tap is a bolt-like tool for making female threads while a die is a nut-like tool for makng male threads. A tap and die set can make many “impossible” repairs or projects possible — even easy.
A Ratcheting “T” handled tap and die set can make it even easier. We found this 5-inch ratcheting arc “T” handled set to be very appealing, especially if you have a tight quarters engine block to work on. It will accommodate tap ranges of 0 – 1/2″ (3 – 12mm).
This tool is widely available on the net. The lowest price we found was $39.14 here.