New cermet grade OKE6310, It gives very good performance to compete with international top cermet brand. But our price is more economical. It is very good grade for steel finishing turning, The surface layer is rich in black core structure, the alloy inner layer of black core, gray ring, white core is evenly distributed, excellent product performance; Recommended for continuous-light & intermittent, fine-semi-finishing procesing of steel, ,stainless steel, and cast iron, suitable for high surface quality cutting."