Round bench dogs are like an extra hand at the workbench. They rotate to grip all workpieces equally well, whether round, irregular, or square shaped. The faces are canted at two degrees to exert downward pressure when tightened against a bench vise, preventing the piece from raising up. The dogs are slightly undersized so they will fit snugly in a 3/4" hole. A high tension side spring ensures a nice friction fit. Made from aluminum so they will not damage cutting tool edges. Dogs are approximately 2-3/8" long. Sold in a pair.