The Century Drill & Tool 40-pc Metric Tap and Die Set, No. 98912, features precision cut threads for consistent and exact threading. Each tap and die are heat treated and tempered for file hard threads and a long life. The set includes 0" - 1/4" and 1/4" - 1/2" T-handle tap wrench, 0" - 1" adjustable tap wrench, 1" adjustable die stock, pitch gauge, screwdriver, and one each of tap and die in 3.0 x 0.60, 4.0 x 0.70, 4.0 x 0.75, 5.0 x 0.80, 5.0 x 0.90, 6.0 x 1.00, 7.0 x 1.00, 8.0 x 1.00, 8.0 x 1.25, 9.0 x 1.00, 9.0 x 1.25,10.0 x 1.25, 10.0 x 1.50, 11.0 x 1.50, 12.0 x 1.25, 12.0 x 1.50, and 12.0 x 1.75.