Ideal 35-922 6-in-1 Twist-a-Nut Tapping Tool Forms new threads, re-forms burred threads and cleans out obstructions Reversible, high-carbon tap with three clearly marked thread sizes on each end Handle is interchangeable with 7-in-1 screwdriver (35-908) and conduit deburrer 6-32, 8-32 and 10-32 on one tapping side, 10-24, 12-24 and 1/4-20 on the other