① Taiwan Material.
② Original corner-radius design, achieve the excellent chip removal and work precision.
③ Nanocomposite AITiN coating makes the high speed and high efficiency drill machining.
④ Diameter from 3 mm to 20 mm, suitable for different type of machining.
2.CTS 3D/5D series (Internal coolant)
① Taiwan Material.
② New groove design achieve the excellent chip removal.
③ Nanocomposite AITiN coating makes the hard-wearing quality.

④ Diameter from 3mm to 20mm,suitable for different type of machining.