The Kreg KLBK Large Bench Klamp System keeps joints flush during screw-driving operations with a modified vise-grip style clamp and a 10 by 10 by 1/4-inch plate. Place the plate on your workbench and attach it with the provided screws, then insert the clamp for a 360 degree pivoting clamping station for all of your pocket hole needs. This clamping system can be used for routing and sanding jobs, and for securing pocket hole tools while you drill pocket holes.