Carbide Drill Finder

Nachi America

Index

Nachi America’s drill lineup excels in demanding applications like automotive parts and aerospace components, where precision and durability are critical.
This article covers key product features and after-sales support.

Nachi America_ Official Website
Source: Nachi America Official Website
https://www.nachiamerica.com

Recommended
Applications
for Nachi America

Nachi America's carbide drills are ideal for manufacturing environments where scrap costs due to tool breakage or machining defects are a concern. Materials like stainless steel and heat-resistant alloys—common in automotive and aerospace components—generate high cutting resistance and heat, which can lead to rapid tool wear and failure.

To address this, Nachi America offers drills with internal coolant (oil-hole) design. Coolant is delivered directly to the cutting edge, ensuring effective lubrication and chip evacuation. This enables deep-hole drilling (up to 40xD) without the need to retract the drill mid-process.

These features help prevent heat-related defects and chip clogging, making the drills especially effective in shops that frequently handle difficult-to-machine materials. As a result, users can expect longer tool life and lower cost per part.

Note: Performance may vary depending on tool type, cutting speed, feed rate, coolant type, and machine rigidity.

Key Products
from Nachi America

AQUA DRILL EX
OIL HOLE Series

product image
Source: Nachi America Official Website
https://www.nachiamerica.com/products/129-aqua-drill-ex-oil-hole-deep-drill-series/

Overview

This internally cooled drill is designed for deep-hole drilling without the need for intermediate retraction or pecking.
Its sharp cutting edge reduces resistance, helping the drill stay on path more easily. When used with a pilot drill, deflection is minimized and hole straightness is maintained—even in long, deep holes.

It’s also effective for sticky materials like stainless steel, where it enables stable, long-term feeding while minimizing chip clogging.

Thanks to its high heat-resistant multilayer coating (with oxidation resistance up to 1,100°C), the drill maintains performance under high thermal loads, reducing both oxidation and wear.

Compatible Materials

  • Structural steel
  • Carbon steel
  • Gray cast iron
  • Alloy steel
  • Pre-hardened steel
  • Copper alloys
  • Die steel
  • Ductile cast iron
  • Stainless steel
*Source: Nachi America Official Website[PDF]
https://www.nachiamerica.com/download/332-general-catalog/

Lineup

  • 3D / 5D: Ø1.0 – 2.9 mm (approx. 0.039" – 0.114")
  • 10D / 15D / 20D: Ø1.0 – 12.0 mm (approx. 0.039" – 0.472")
  • 25D / 30D: Ø1.0 – 8.0 mm (approx. 0.039" – 0.315")
  • 40D: Ø1.0 – 7.0 mm (approx. 0.039" – 0.276"）
  • Pilot Type: Ø1.015 – 12.03 mm (approx. 0.040" – 0.474")
*Source: Nachi America Official Website[PDF]
https://www.nachiamerica.com/download/332-general-catalog/

AQUA REVO DRILL Series

product image
Source: Nachi America Official Website
https://www.nachi-technologypark.jp/tool/product02/

Overview

AQUA REVO DRILL is a high-performance general-purpose drill redesigned from the ground up—combining a new carbide substrate, coating, and geometry.
The newly developed high-strength carbide material balances hardness and toughness.
Its linear edge geometry helps disperse cutting force and reduce stress concentration, improving corner strength and stabilizing torque and thrust.

It supports a wide range of materials—from general structural steel to stainless steel, hardened steel, nickel-based alloys, and titanium alloys—making it well-suited for high-volume production lines under demanding conditions.

Compatible Materials

  • Carbon steel
  • Alloy steel
  • Cast iron
  • Aluminum alloys
  • Copper alloys
  • Hardened Steels (<50 HRC)
  • High Temp Alloys
  • Stainless Steels
  • PH Stainless Steels
*Source: Nachi America Official Website[PDF]
https://www.nachiamerica.com/download/332-general-catalog/

Lineup

  • Stub Length: Ø2.0 – 16.0 mm (approx. 0.079" – 0.630")
  • Jobber Length：Ø2.0 – 16.0 mm (approx. 0.079" – 0.630")
  • 3XD Length: Ø3.0 – Ø16.0 mm (approx. 0.118” – 0.630”)
  • 5XD Length: Ø3.0 – Ø16.0 mm (approx. 0.118” – 0.630”)
  • 8XD Length: Ø3.0 – Ø16.0 mm (approx. 0.118” – 0.630”)
*Source: Nachi America Official Website[PDF]
https://www.nachiamerica.com/download/332-general-catalog/

AQUA DRILL EX FLAT Series

product image
Source: Nachi America Official Website
https://www.nachiamerica.com/products/126-aqua-drill-ex-flat-oil-hole-series/

Overview

This series features a flat 180° cutting edge designed to cleanly shear—rather than push—material at the hole exit.
This minimizes burrs, especially when drilling materials prone to burring like cast iron and aluminum.

The flat tip also provides excellent grip on inclined or thin surfaces, allowing both counterboring and pre-hole drilling in a single pass.
By combining steps into one operation, it eliminates the need for center drills or end mills—improving positioning accuracy and shortening cycle times.

The series is exclusively equipped with Aqua EX (AlCrTi) coating, ensuring consistent performance across various materials.
This makes the series ideal for applications requiring high-quality burr control, such as brackets, housings in automotive parts, or reinforcing ribs in aircraft structures.

Compatible Materials

  • Low-carbon steel
  • High-carbon steel
  • Alloy steel
  • Tool steel
  • Hardened steel (up to - 45 HRC)
  • Martensitic stainless steel (400 series)
  • Aluminum (6061, 7075)
  • Copper alloys
  • High Temp Alloys
  • Austenitic Stainless Steels (300 Series)
  • PH Stainless Steels
*Source: Nachi America Official Website[PDF]
https://www.nachiamerica.com/download/332-general-catalog/

Lineup

  • Super Stub Length：Ø2.0 – 20.0 mm (approx. 0.079" – 0.787")
  • Stub Length：Ø0.2 – 20.0 mm (approx. 0.008" – 0.787")
  • Corner Radius：Ø3.0 – 12.0 mm (approx. 0.118" – 0.472")
  • Jobber Length / Long Shank：Ø3.0 – 20.0 mm (approx. 0.118" – 0.787")
  • 3XD Length: Ø1.0 – Ø16.0 mm (approx. 0.039” – 0.630”)
  • 5XD Length: Ø1.0 – Ø16.0 mm (approx. 0.039” – 0.630”)
*Source: Nachi America Official Website[PDF]
https://www.nachiamerica.com/download/332-general-catalog/

For more detailed technical information and product comparisons, visit our special feature on carbide drills for stainless steel.
The page highlights three top manufacturers with proven strengths in stainless steel machining, including in-depth coverage of recommended tools for this demanding material.

3 recommended Carbide Drills
for Stainless Steel

After-Sales Support from Nachi America

Nachi America provides regrinding services for carbide drills at its manufacturing facility in Greenwood, Indiana.
Customers can also access training programs on drilling, milling, and threading tools, led by Nachi’s cutting tool specialists.

In partnership with CAD/CAM providers, Nachi America offers programming support for machining operations.
Their technical support team is available for troubleshooting and application consultations, helping customers optimize conditions and maintain stable operations after tool adoption.

With these services in place, Nachi America offers peace of mind and ongoing support for users in demanding machining environments.

Company Information

Address Nachi America Inc., 715 Pushville Rd, Greenwood, IN 46143, USA
Phone Number +1-877-622-4487
Official Website https://www.nachiamerica.com/
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