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 and maintain perfect alignment. When all holes are drilled you can quickly disassemble the piece for deburring or for other fabrication steps. The standard Clecos have a 1/4 inch maximum grip. The side grip clamp has 1/2 inch maximum grip and 1 inch jaw depth. The Pliers will work on either style clamp.