12Pcs 5g Diamond Lapping Paste Compound Syringes 0.5-40 Micron Metal Stone Glass Description All of them are oil based, easy for use and avoid contamination.  Suitable for use on jewellery & gemstone, steel & hard metal, aluminium & zinc, all metallurgical purpose. Colour: Mixed colour Granularity:  0.5 Micron - Final Polish 1.0 Micron - Mirror finish 1.5 Micron - Mirror finish 2.5 Micron - Mirror finish 3.5 Micron - Fine Polish 5.0 Micron - Fine Polish 7.0 Micron - Pre Polish, fine lapping 10 Micron - Lapping metals 14 Micron - Stock Removal or lapping metals 20 Micron - Stock Removal or lapping metals 28 Micron - Medium fast lapping 40 Micron - Fast lapping or stock removal carbide Package include: 12 x 5gram Diamond Polishing Lapping Paste Syringes