Bessey UNIK-6S 6-Piece Multi-Purpose Parallel UniKlamp Set Over 11 sq. inches of clamping surface with up to 550 lbs. of pressure across the entire surface Gentle, "forgiving" jaws will clamp round and odd shaped pieces firmly for a wide range of household and professional applications Glue resistant jaws will not mar crafts or woodworking projects Profiled rail minimizes flexing and bending with an Acme thread for smooth action and long life Oversized handle minimizes fatigue and adds torque while the jaws easily and quickly reverse for use as a spreader; limited lifetime warranty