Kreg KBC3 Automaxx Bench Clamp, 3"Highlights: Size: 3" Heavy duty all metal construction Auto Adjust technology automatically adjusts to any thickness Clamps materials up to 2 12" thick Easy to regulate clamping force using a simple thumbscrew Extra large padded clamp spreads clamp pressure evenly Ergonomic padded grips prevent hand fatigue Compatible with Kreg Klamp Plate, Klamp Trak, and Klamp Vise Plate WARNING: This product can expose you to chemicals including Formaldehyde (gas)