ITEM NAME:4 Flute Tungsten Steel Flush Trim Router Bit Woodworking Milling Cutter 8mm Description: - Fine workmanship -- This end mill has high-density polished,superhard and high-wearable. it can enjoy high temperature and strong-resistant for a long service time. - Tungsten Car.4 Flutes -- Brings standard 4 flutes milling cutter, fast cutting. - Working on less than HRC 45 degree cutting. / HRC 45 degree milling cutter can be used to cut less than HR55. - Cutter Dia - Shank Dia - Total length - Blade length.