FeaturesForms new threads, re-forms burred threads and cleans out obstructionsReversible, high-carbon tap with three clearly marked thread sizes on each endHandle is interchangeable with 7-in-1 screwdriver (35-908) and conduit deburrer (35-083)#6-32, #8-32 and #10-32 on one tapping side, #10-24, #12-24 and 1/4-20 on the other