Bessey TW16VAD Vario table clamping attachment TW, BE105694 - Specifically adapted to round, oval and square workpieces. Angle infinitely adjustable from 60¡ internal to 60¡ external. TW16VAD/TW28VAD à version with bolt à for rapidly aligning and fixing the workpiece to the welding table. TWVAD à version without bolt à for variable movement on the welding table.