Fully articulated modular design positions your workpiece at any angle for full weld access. Use you third hand to elevate and firmly hold stock at the ideal angle and height while you weld grind sand or paint. Hold stock at any position with ball joint adjustment and locking., Universal clamp base mounts on flat or square surfaces angle iron and 25mm round posts. Clamp opens to 50mm Fully articulated modular design positions your workpiece at any angle for f ull weld access. Use you third hand to elevate and firmly hold stock at the id eal angle and height while you weld grind sand or paint. Hold stock at any p osition with ball joint adjustment and locking., Universal clamp base mounts o n flat or square surfaces angle iron and 25mm round posts. Clamp opens to 5m m,