... of Steel Grit:G10, G12, G14, G16, G18, G25, G40, G50, G80, G1201. Hardness: GP / GL / GH GP: HRC46-50 Newly ... , S780 Steel Grit: G10, G12, G14, G16, G18, G25, G40, G50, G80, G120 Stainless Steel cut wire: 0.3, 0.4 ... iron grit Copper shot Zinc shot Aluminum shot steel grit G50