Complete honing and deglazing set for 13 - 89mm diameter cylinder boresFlexible drive shaft for use with air or electric drillsSupplied with a set of medium grade 220 grit stonesSuitable for use on brake and clutch cylinders, small bore engine cylinders, motorcycle engines etcReplacement Stone Sets:02800100 - Grade: Fine Grit: 40002800200 - Grade: Medium Grit: 220Note: Each Stone Set consists of 3 x 19mm stones / 3 x 29mm stones / 3 x 50mm stones and 3 x replacement spring clips