The 4″ has a 1/2″ center hole, the 6″ has a 5/8″ hole with removable reducer to 1/2″, and both are rated up to 4,500 rpm. The 4″ wheel has a bristle width of about 1/4″ and the 6″ wheel’s width is about 3/8″.
Item Tag: WOLFCRAFT
2 Brand New WOLFCRAFT Knotted Twisted Cup Brush Wire Wheels High Performance Base Diameter: 2-3/4″Diameter At End Of Wire: 3-1/4″ Arbor Size: 5/8″-11 Max RPM: 12,500 Model Number: 2125 Great For All Your Rust, Adhesive And Corrosion Removal Fits Most 4-1/2″ Angle Grinders THANKS FOR LOOKING
2 Brand New WOLFCRAFT Knotted Twisted Stringer Wire Wheels High Performance Diameter: 4-1/2″ Arbor Size: 5/8″-11 Max RPM: 12,500 Model Number: 2149 Great For All Your Rust, Adhesive And Corrosion Removal Fits Most 4-1/2″ Angle Grinders THANKS FOR LOOKING