Flat File MKH01 Size: 4",5",6",8",10",12",14",16" 18" Cut No:smooth, 2nd, bastard Material:T12 carbon steel Thickness ... on sharpingWe produce middle quality and high quality products. This steel file could be a sharper for some hand tools,such ... as steel pickaxe, hoe head to make them more sharper. FLAT FILE 'S TEETH Number AS FOLLOWING ...