This tool allows you to adjust the delay length of all 24mm, 29mm and 38mm Cesaroni motors by drilling a set depth into the delay element. It allows you to select from 5 preset delay times. (IMPORTANT: read below first).
 
It can be used straight away with all 38mm Cesaroni motors.
If you want to adjust a 29mm Cesaroni motor delay, you will need to purchase a 38mm to 29mm centering ring.
If you want to adjust a 24mm Cesaroni motor delay, you will need to purchase a 38mm to 24mm centering ring.