Taper taps are used to engage the inside of a fish
Taper Taps are used to engage the inside spears would not be feasible , it is designed to cut threads where no threds are present.Standard taps are machined from high quality heat-treated steel with buttress-type threads that are carburized for high surface hardness and good core strength.
Taps can be used to fish tubulars, bridge plugs, packers, packers, or other types of downhole equipment where conventional spears and overshots cannot be used. Taps should always be run with a safety joint and bumper jar.
All taper tap have standard pin up API Reg connections. The connection will be dependent on the mill OD.