A high-quality hard-wearing aluminium oxide bench grinding wheel with coarse grit Suitable for general grinding deburring and tool sharpening on non-ferrous metals and steel Manufactured with a 3175mm bore and supplied with 5 reduction rings enabling each bench grinding wheel to fit most bench grinders with a bore size between 127 – 3175mm Compatible with 19mm and 20mm wheel face Draper Bench Grinders Specifications Diameter 150mm Thickness 20mm Grit 36G Coarse Metres Per Second 35ms Max Speed 4450rpm Bore 3175mm Reduction Ring Sizes 2540mm 2223mm 1905mm 1590mm 1270mm Wheel Hardness P Approved Abrasive Wheel Marking Code A36P 5V Certification EN12413 Nett Weight 079kg Standards Conforms to EN12413