FOR CRIMPING IDC-TYPE OF CONNECTORS ON TO RIBBON CABLE. CRIMPING FROM HEIGHT -6mm DISTANCE -27.5mm(MAX.55mm WIDTH) 1)Insert the flat cable into the IDC connector 2)place the assembled IDC connector onto the suitable adapter you may use this tool with or without adapter, depends on the height or width of the connectors, for HT-214 adapter, one side is suitable for connector width up to 6mm and the other side is 10mm 3)put the adapter and fixed onto the jaw 4)Squeeze the handles until its stop to crimp the connector