These beading rollers allow your beading machine to bead the pipes and sheets into the shapes you need. Made of solid steel, these flange nuts are tear-resistant and heavy-duty when bending pipes. Thanks to their precise design and manufacturing, they deliver exactly the sizes and shapes you need. When mounted on the pipe beading machine, they help to make metal connecting rings on metal pipes quickly and easily. A compatible beading machine (SKU 141316) is available in our shop. Color: BlackMaterial: SteelThe inner bore of the rollers is 20 mm ? suitable for the beading device with the SKU 141316.Rotary beading roller set A (width: 3 mm):Roller 1:Outer diameter: 55 mmInner diameter: 20/30 mmHeight: 28 mmRoller 2:Outer diameter: 53 mmInner diameter: 20/30 mmHeight: 25 mmRotary beading roller set B (width: 4.7 mm):Roller 1:Outer diameter: 55 mmInner diameter: 20/30 mmHeight: 28 mmRoller 2:Outer diameter: 53 mmInner diameter: 20/30 mmHeight: 25 mmDeburring beading roller set:Roller 1:Outer diameter: 53 mmInner diameter: 20/30 mmHeight: 25 mmRoller 2:Outer Diameter: 51 mmInner Diameter: 20/30 mmHeight: 25 mmWiring Surround Roller Set:Outer Diameter: 53 mmInner Diameter: 20/30 mmHeight: 26 mmOgee Surround Roller Set:Outer Diameter: 55 mmInner Diameter: 20/30 mmHeight: 38 mmCrimp Surround Roll Set:Outer Diameter: 55 mmInner Diameter: 20/30 mmHeight: 38 mmDelivery Includes:12 x Rollers