Bosch Diamond 4.5-in Cup Wheel5 8 11 spin on arbor size for use with small angle grinders Double row segments for quick material removal Optimized bond and formula for longer life Optimized segment height minimizes dust and debris Features Sub Brand N A Series Name N A Application Grinding and cutting Material Diamond Type N A Wheel Type Cup wheel Grit N A Diameter (Inches) 4. 5 Thickness (Inches) 1. 26 Arbor Diameter 5 8 in Threads Per Inch 0 For Use with Concrete & Masonry Yes