2 x Aluminium Oxide Bench Grinder Abrasive Wheels.  Suitable for DIY 8" Bench Grinders. Wheel Diameter - 200mm Wheel Thickness - 20mm Bore size - 16mm Grits  1 x Coarse (36 N)  1 x Fine (60 N) We also supply a full range of grinder eye protection shields, backing washers, lock nuts as well as polishing compounds  and polishing supplies. Text 07577427166 for any questions.