Features: 1. W/ Quick releaser 2. Professional mechanic tool constructed, rugged and strong for Heavy duty. 3. The wide opening jaws provide greater versatility to tighten the screws when clamping various shapes to adjust pressure and work. 4. Classical trigger release for maximum toughness and durability designed to provide maximum locking force. 5. Swivel pads design to get a strong grip on irregular shaped pieces to keep them steady.