Sumitomo Electric Hard Metal Aurora Coated Drill Bit for Non-Ferrous Machining Multi-Drill MDA Type (Internal Coolant Type)

Towards a new area of aluminum alloy machining! Achieves a wide range of applications from high-precision machining to high-efficiency machining. Excellent Machining Stability: Achieves both high-efficiency machining and hole position accuracy due to the effect of the new thinning shape of the drill tip, "RD Thinning". New DLC coating suppresses tool damage: Adoption of the highly smooth new DLC coating "Aurora Coat X" improves adhesion resistance and suppresses tool damage. Improved processing stability for cast holes: Improved processing stability with tool specifications that are less susceptible to misaligned cast holes that are unique to cast aluminum alloys.
Drilling of aluminum alloy
*Use with internal lubrication. *Recommended cutting fluid supply pressure is 2.0 MPa or more for Φ3 or less, and 1.5 MPa or more for Φ3 or more. *Keep drill run-out below 0.02mm. * If abnormal noises or vibrations are observed, change the cutting conditions according to the situation. *We do not recommend using a 10D (or larger) drill for processing cast holes. * Drilling 10D or more may cause an abnormality, so please drill a guide hole (hole depth is 1D to 2D) first. *3D (5D) drills can be used for guide hole processing.