● For locking flywheel in TDC position on BMW N51, N52, N52K, N53, N54.
● Turns crankshaft to TDC position while central bolt moves.
● Put HCB-A1188-3 into calibrate hole (arrow ahead) and fixed crankshaft.
● Attention :
   1. In the vehicle which carry special equipment SA205 (Automatic 
   Transmission), there is a big hole make use of TDC position nearby 
   calibrate hole.
   2. When HCB-A1188-3 stayed in calibrate hole and locked flywheel, it is 
   impossible to move engine through central bolt.