The CWP-7 is a universal tool for removing both square taper and splined crank arms from 3-piece bicycle crank systems. The swappable rotating tip smoothly and securely presses the crank arm away from the bottom bracket spindle. The extra fine threads provide the needed leverage to remove even the tightest cranks. The CWP-7 requires the use of an adjustable wrench. Fits crank arms with M22 x 1.0 threads Compatible with systems that use an M8 x 1.0 threaded crank bolt, including: Square taper SRAM® PowerSpline® BNI cranks for Bosch® e-bike systems LARGE SWIVEL FOOT Fits crank arms with M22 x 1.0 threads Compatible with systems that use an M12 x 1.0 or M15 x 1.0 threaded crank bolt, including: Shimano® Octalink® ISIS Drive ISIS Overdrive systems