Abstract: A crimping tool for use with a stranded cable connector having co-aligned sleeve openings, including a first member with a crimping portion; a piercing portion extended from the first crimping portion; a second member with a crimping portion and a recess for receiving the piercing portion and means to move the first and second crimping portions towards one another. A loose fitting cable connector sleeve with an inserted cable portion is positioned on the second crimping portion and the piercing portion is moved through the sleeve openings, thereby displacing the cable strands toward the interior wall of the sleeve, and forming a through passage. Movement of the cooperating crimping portions continues until the crimping portions have formed flat surface areas along the entire length of the sleeve thereupon and further movement is limited by an adjustable stop.