High-accuracy drilling Achieves high-accuracy drilling up to a depth of 5D with a 3-flute design that delivers excellent cutting balance Long tool life Features fine cemented carbide for excellent chipping resistance and AQUA EX coating for enhanced resistance to heat and wear Improves chip fragmentation and evacuation Optimized flute geometry and cutting-edge design improve chip fragmentation and evacuation for stable drilling Lineup 5D: Ø3-Ø16 *Cutting fluid is supplied externally

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

High-accuracy drilling Features a 3-flute design that achieves excellent cutting balance, as well as high-accuracy drilling capable of a reamerless process up to a depth of 5D Handles drilling up to a depth of 5D Optimized flute geometry and cutting-edge design improve chip fragmentation and evacuation for stable drilling

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