Counterboring 2ZDK Edge ends have 180° flat and are applicable to various applications. Available for high-precision counterboring. Optimum tool for improvement and cost reduction of difficult machining processes. 180° Flat Bottom ● Smooth Chip Evacuation ● Long Tool Life with "MEGACOAT NANO" ・Combination of smooth chip control and high ・The special Multilayer Nano Coating prevents wear rigidity due to the special flute design and chipping with high hardness (35GPa) and superior Large Chip Pocket oxidation resistance (oxidation temperature: 1,150 °C ) 40 MEGACOAT NANO Hardness (GPa) 35 30 25 TiCN MEGACOAT 20 TiAIN 15 TiN 10 400 600 800 1,000 1,200 1,400 L Oxidation temperature (°C) Low Oxidation resistance High ■ Tool Life Comparison (S45C, 200 holes) (Internal evaluation) Solid End Mill Stable Machining with Minimum Wear ◦ Wear Comparison of Bottom Edge 2ZDK Competitor A Cutting Conditions: n=3,000min-1 Vf=420mm/min Drilling Depth=12mm (1.5D) Wet NEW Short type is now available Short type is highly rigid due to large core diameter Stable chip evacuation Large core by a large chip pocket diameter design Suitable for shallow drilling under 1.5D Short type L47