Using our combination kit, you can start with a rough casting and end with a mirror finish. Everything needed is included, except you and the drill. Kit contains 24 pieces and instructions. Pre-polish and finish Aluminum Alloys, Brass, Copper, Steel, Iron and Stainless Steel! The Polishing And Abrasive Kit contains : - 3 of 4\" x 1\"  stitch mops - 450g Tube 80 coarse grit abrasive compound - 450g Tube 150 or 180 medium grit abrasive compound - 450g Tube 240 or 300 fine grit abrasive compound - 4\" x 1\"  Sisal mop - 4\" x 1\"  White stitch mop - 4\" x 1\"  G quality mop - 100g Bar Grey compound - 100g Bar Green compound - 100g Bar Blue finishing compound - Vienna Lime Powder - 7 Small Polishing Felts - 1 pair of gloves - Steel Arbor - Mini Arbor - Dust Mask   Grades Available - There are several grades of abrasive compound available. The lower the grit number, the coarser the abrasive and the faster metal removal (giving a poorer finish). The higher the grit number, the finer the abrasive and the slower the metal removal but it provides a better finish. To take a metal from a poor condition to a finish ready to be polished, will take several greaseless compound processes. For example, you can start at a wheel coated with 120 grit greaseless, next 180 grit and finally the wheel coated with 240 grit.