The universal design of the CWP-7 has a rotating tip pressed into each end of the tool (11.3mm and 16.3mm) so it will remove both square taper and splined (ISIS Drive, Octalink) crank arms.
 
The CWP-7 is made for the 22 x 1mm threading in the common cranks.
 
Built-in 8mm hex for removing crank bolts
Includes 2 rotating tips (11.3mm and 16.3mm) to remove Ocatlink and ISIS Drive crank arms, and tapered-holed crank arms