Save time with this portable 19-piece value pack assortment to tackle multiple jobs quickly. 5/16 In. to 2-3/4 In. diameter adjustable clamp. SAE Sizes 4, 6, 8, 10, 12, 20, 28, 36. with all 300 series stainless steel construction. Clamps hold strong and connect easily with clean punch and rectangular perforations.