KREG Automaxx® Pocket-Hole ClampThe Automaxx Pocket Hole Clamp uses standard pocket holes to fix two workpieces over corner. The KHCRA has a capacity of 79 mm and clamps materials up to a strength of 127 mm. This means that this clamp is useful for simple corner and cross connections, but especially for long workpieces that need to be held in position for screwing. Just slip the pin on the Right Angle Clamp into a pocket hole, close the clamp, and it draws the mating pieces tightly