The 24BX-2-7-3-L from Calmark Birtcher is Lok-Tainer for board thickness 1.60mm (.063"). This Lok-Tainer has length of 88.9mm (3.5") and left hand lever action. The 24BX-2-7-3-L is made of beryllium copper, 1/4H per ASTM-B-194 and has cadmium per QQ-P-416, Type 2, Class 2 finish. For sheet metal applications.