Exclusive design provides precision and power. Precision-Rule measurement system provides a consistent setup and quick identification of opening capacity. Slide-Glide trigger makes precise adjustments. Ergonomic SUMOGRIP handle integrated with soft grip. Moveable rail stand/end stop helps preset clamping capacity rapidly. Non-marring composite resin jaw faces glue resistant in design, ensure even clamping pressure. Reversible clamping movable jaw can be reversed to be used as a spreader. Side profile allows narrow clamping on the side of the jaw face. Acme threaded handle turns easily and applies continuous pressure.