Lee Auto Bench Priming Tool (90700)Features: Triangular tray that accept all brand of primer boxes Ergonomic Design Large and Small primer trays Unmatched sensitivity The easiest, most convenient bench mounted priming tool ever. Symmetrical design allows effortless right or left hand operation. Comfortable lever with just the right amount of mechanical advantage effortlessly seats even the most difficult primers with just finger pressure. The perfect mechanical advantage to feel the