Steel Dragon Tools 47770 1" to 2" High Speed NPT Pipe Tap for RIDGID 811A 815ASteel Dragon Tools 47770 High Speed Steel Right Flute NPT 1" to 2" Pipe Templates. These dies fit Ridgid 504A, 711, 713, 811A, 815A, 816, 817 and 842 die heads and Steel Dragon Tools 811A and 815 dies. Pipe Capacity 1" to 2" Fits RIDGID dies 504A, 711, 713, 811A, 815A, 816, 817, 842. Fits steel kite tools:811A, 815A made of high speed steel. NPT Right Hand Thread For 1" to 2" pipe to produce 11-1/2 threads per inch. Fits RIDGID Part # 47770