Forney 58587 Industrial Pro Magswitch Boomer, 50mm 8-Inch welding angles features 2 pivoting 50 millimeter MagSquare that enable fast precise welding and fabrication at unlimited angles Each Magsquare has up to 550-Pound of holding power The Magsquare are pre-set for 90 degree holding, but can easily pivot for inside and outside holding at any angles Allows unlimited angle welding and fabrication for all steel plate, flat stock, bar, round stock as well as angle iron holding Holds on flat and pipe surfaces