EP-16A ( 16-16.5) step 0.01, 51 pin
EP-16B ( 16.5-17) step 0.01, 51 pin
EP-17A ( 17-17.5) step 0.01, 51 pin
EP-17B( 17.5-18) step 0.01, 51 pin
EP-18A ( 18-18.5) step 0.01, 51 pin
EP-18B( 18.5-19) step 0.01, 51 pin
EP-19A( 19-19.5) step 0.01, 51 pin
EP-19B ( 19.5-20) step 0.01, 51 pin