Features: These tools, with high geared mechanical ratios, bend heavy-wall steel tube (up to 1/8" wall thickness), stainless steel tube (up to 3/32" wall thickness), and hard copper water tube (types K and L) Benders produce uniform bends up to 180°, with no need to anneal tubing or use special temper grade tubing Tube O.D. : 5/8 in Bend Radius : 3 in Applicable Materials : Copper, Steel, Stainless Steel Up To 3/32" Wall Thickness