No Tack Cross Bars are arched to permit a full circle weld to be completed without removal of the clamp. The No Tack clamp is used to make the welding more efficient and to ensure a quality weld. Tack and No Tack crossbars are also available with Stainless Steel contact points. Features: Precision built for accurate alignment and long field life. Simple, quick and easy to use. “No Tack” design features arched cross bars for 360 degree welding access without removing clamp. Available with Stainless Steel contact points .