HUB TMI-364M-16. Professional quality tube bender Combine accuracy with easy operation. • Offset cushion grip handles eliminate knuckle cracking when forming 180° bends. A 90° start angle and unique oil-absorbing shoe minimize bending effort while forming accurate bends in copper, steel and stainless steel tubing. • Tube Size, O.D. 16MM/5/8" • Radius to Center of Tube : 2.1/4"