Just one of the many accessories available for BESSEY welding table clamps. The TW16VAD is a variable angle pressure pad (VAD) attached to a short 16 mm diameter stud. It is great for supporting round stock and other odd shaped work pieces. The VAD can be removed from the short 16 mm diameter stud and attached to the TW16X variable height extension. Other available accessories are toggle clamp adapters, variable risers and an adapter that allows you to use some of the STC series toggle clamps on your matrix table. BESSEY. Simply better.