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AQUA Drill EX 3 Flutes Hard

A 3-flute drill with an optimized flute geometry and cutting-edge design for an excellent cutting balance

AQUA Drill EX 3 Flutes Hard High-accuracy drilling
  • Features a 3-flute design that achieves excellent cutting balance, as well as high-accuracy drilling capable of a reamerless process
High-feed drilling
  • Enables stable high-feed drilling by adopting a cutting-edge design that delivers both excellent cutting performance and strength, and by increasing the stiffness of the body through a small helix angle

AQUA EX coating with enhanced resistance to heat and wear

AQUA EX coating

  • Features a special lubrication film and smoothing treatment for excellent chip evacuation
  • Ensures high oxidation resistance (1,100°C) by adding a layer with high Al content
  • Controls crack propagation with a multilayered structure. Optimizes compressive strength for increased film hardness (3,300HV).
    Increases resistance to wear.

Oxidation resistance evaluation

Competitor products (listed oxidation resistance at 1,200°C)

Total oxidation

AQUA EX coating

Approx. 50% oxidation


Applicable work materials

Low-carbon steels
Soft steels

SS400, S10C

Carbon steels
Alloy steels

S45C, SCM440

Pre-hardened steels
High alloy steels

SUJ, NAK

Tempered steels
 

SKD, SKH

Hardened steels
 

Hardened steels

150HB 225HB 275HB 30 40HRC 40 50HRC 50 65HRC
× × × ×  

Stainless steels

Heat-resistant alloy

Ti/Ni Alloys

Cast iron

FC/FCD

Aluminum alloy

AC/ADC

Copper/copper alloy

Cu

SUS304 SUS420
× × ×   × ×

: optimal : applicable ×: not applicable No mark: not recommended