Lang Tools 2581 26-Piece Thread Restorer Tap and Die Set Contains 7 SAE coarse dies sizes: 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 9/16-12, 5/8-11 6 SAE coarse taps sizes; 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 9/16-12 6 SAE fine taps sizes: 8, 10, 11, 12, 13, 14, 16, 18, 20, 24, 27, 28 & 32 Made in the USA