T-bar cramp for woodworking, a long bar clamp for edge-gluing boards and clamping wide panels, frames and carcasses. A red T-section steel bar carries a row of holes along its length, and a sliding jaw locks into position with a pin to set the opening. At the far end, a screw-driven jaw with a tommy bar handle closes onto the work for final tightening. It suits joinery, furniture making and cabinet work where long spans need even pressure.