ITEM NAME:10Pcs/box DCMT070204 Carbide Insert For Lathe Turning OZ Specification: 100% brand and high quality Model: DCMT070204 Material: car.Model: DCMT070204. 02 = thickness mark of blade, 02 = 2.38mm. M = blade side length, thickness, accuracy level of inner hole (can be ignored). Mainly used for steel, stainless steel finishing and semi-finishing rough machining.