These temporary, reusable fasteners are the fabricator's best friend. Once you've used them you'll wonder how you ever managed without. Install them as you drill holes that are to be riveted at a later time. The Cleco will clamp the parts together to maintain alignment. When all holes are drilled you can quickly disassemble the piece for deburring or for other fabrication steps. The side grip clamp has 1/2 inch maximum grip and 1 inch jaw depth. Requires Cleco Pliers (Part No. 647-Plier), sold separately.