1、chip free hole edges thanks to negative spurs, increased tensile strength
2、Safe drilling thanks to centering point which guarantees concentricity and balance
3、 protection of the hole edge thanks to spiral with big back guide way, ensuring best chip
evacuation
4、Long edge life due to high quality materials and advanced tech
5、Reduced friction and increased anticorrosion due to special coating
6、Solid carbide head extend working life and side rakers guarantee best cutting finish