Our line of Face Clamps helps to ensure a perfectly flush joint every time. Without clamping, the joint can misalign if the screw follows the grain of the wood. To use, place the large pad of the clamp directly over the center of the joint line on the face side of the workpiece(opposite the pocket holes), clamp with moderate pressure and drive a screw. Three sizes are available; KHC-PREMIUM - 3-1/4 reach, KHC-LARGE - 6 reach and KHC-XLARGE -10 reach.