ITT Cannon connectors APD series crimp die tool for high power 1 way contacts, used in conjuction with a hand operated crimp tool.
For contacts see: 752-5534 , 752-5537, 752-5521, 752-5525 , 752-5519 , 752-5528 , 752-5512 ,752-5515, 752-5531 and 752-5540