The Faithfull aluminium oxide vitrified grinding wheels are suitable for use on most types of bench grinders and are suitable for normal grinding of ferrous metals. 125mm wheels have a bore size of 19.05mm and are supplied with a 12.7mm reducing bush. 150 and 200mm wheels are supplied with bore reducing bushes and will fit bench grinders with the following shaft sizes: 31.75mm, 25.4mm, 19.05mm, 15.88mm and 12.77mmSelect Option 150 x 20mm coarse150 x 20mm fine150 x 20mm medium16mm medium200 x 20mm coarse200 x 20mm fine200 x 20mm medium200 x 25mm fine25mm coarse Add to Basket Quantity