From DT Online
Features and Applications
They are of generally lighter construction. Many designs have quick adjust and quick release mechanisms and some can be operated single-handedly because of a ratchet mechanism used to tighten them.
|Record Sash Cramps||Record Sash Cramp Lengthening Bars||Record Cramp Heads||Heavy Duty G Cramps||Deep Throat G Cramps||Edging Cramps||Quick-Grip Mini Bar Clamps||Corner Clamps||Spring Clamp Set||Wooden Hand Screw Clamp|