Park tool pedal tap clean out or restore damaged threads in crank arms with these pedal taps these taps can be used with either steel or alloy crank arms set includes both right and left hand threads made of high carbon steel precision ground and hardened to stay sharp they cut easily and fit all conventional tap handles features includes a set of 2 taps 12 x 20 tpi or 916 x 20 tpi made of high carbon steel precision ground and hardened to stay sharp fits all conventional tap handl