Irwin 1988920 Quick-Grip Medium Duty Clamp Coupler The Irwin Quick-Grip Clamp Couplers connect bars of two Quick-Grip one-handed bar clamps to create one longer bar clamp. Increasing the length to manage larger projects. Plus, this accessory is also compatible with the previous generation of clamps and Quick-Change™ one-handed bar clamps. This coupler is suitable for medium-duty clamps. FEATURES Suitable for medium-duty clamps Compatible with the previous generation of clamps and Quick-Change one-handed bar clamps SPECIFICATION Article Number: 1988920