For ZTTO Steel Bike Crank Thread Tapping Device Universal 9/16"Pedal Thread Tool
Think of it as your pedal, install it on the crank, and you have finished tapping thread. L:the longer one is for left crank. R:the shorter one is for right crank. Motorcycle Radiator Grille Cover Guard Protector For BMW R1200R R1200RS R1250R.