Mitsubishi Materials

This guide introduces solid carbide drill series designed to improve cutting efficiency and tool life—ideal for engineers in the automotive and aerospace industries.
Use it as a reference when selecting the right tool for your application.

Recommended
Applications
for Mitsubishi Materials

Mitsubishi Materials' solid carbide drills feature advanced wear-resistant coatings and internal coolant channels. These technologies help reduce wear and chip clogging, resulting in longer tool life and improved machining stability.

They are well-suited for high-volume production environments where reducing downtime is critical, as well as for precision applications where consistent hole quality is required.

Note: Tool performance may vary depending on cutting parameters such as speed, feed, coolant, and machine rigidity.

How to Choose Mitsubishi Materials Carbide Drills

General and Deep-Hole Drilling

Recommended: DVAS TRISTAR Drill

If your operation requires high hole accuracy across a wide range of materials, the DVAS TRISTAR Drill series is a strong option. This solid carbide drill uses a two-flute construction designed to deliver hole accuracy comparable to three-flute tools.

Its XR thinning geometry helps reduce cutting resistance, while TRI-Cooling technology improves edge cooling and chip evacuation. These features support stable drilling performance in steel, stainless steel, cast iron, non-ferrous metals, and heat-resistant alloys.

The DVAS lineup also supports deep-hole drilling needs. In addition to standard drilling options, the DVAS Mini line covers L/D ratios from 20 to 50, making it suitable for high-precision deep-hole applications in automotive and aerospace components.

For manufacturers looking for a carbide drills manufacturer that can support both everyday holemaking and deep-hole machining, the DVAS series can help improve tool standardization and overall line efficiency.

Best Suited For

• High-accuracy general drilling
• Deep-hole drilling applications
• Steel and stainless steel components
• Cast iron parts
• Non-ferrous metals such as aluminum and copper
• Heat-resistant alloy workpieces
• Automotive and aerospace components
• Operations where tool standardization is important

Available Lineup

• DVAS-X02 Series（L/D = 2）
• DVAS-X07 Series（L/D = 7）
• DVAS-X12 Series（L/D = 12）

Stainless Steel Drilling

Recommended: MMS WSTAR Drill

If your main workpiece material is stainless steel, the MMS WSTAR Drill series is designed specifically for stable stainless steel machining. It is suitable for a wide range of stainless steels, including austenitic, martensitic, and duplex grades.

A proprietary coolant hole design increases coolant flow to help reduce heat generation during drilling. The wavy cutting edge balances sharpness and strength, helping suppress work hardening, which is one of the common challenges in stainless steel machining.

The dedicated margin design helps lower cutting resistance, and when paired with the DP7020 grade, the drill supports long tool life and stable performance. For production lines that machine multiple stainless steel grades, the MMS series can also help reduce tool changes and simplify inventory management.

Best Suited For

• Stainless steel drilling
• Austenitic stainless steels
• Martensitic stainless steels
• Duplex stainless steels
• Applications where work hardening must be controlled
• Operations requiring long tool life and stable performance
• Production lines that need fewer tool changes

Available Lineup

• MMS-X3DB Series（3×D）
• MMS-X5DB Series（5×D）

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.

Heat-Resistant and Titanium Alloys

Recommended: DSA WSTAR Drill

If your application involves difficult-to-machine materials such as nickel-based alloys, cobalt-based alloys, or titanium alloys, the DSA WSTAR Drill series is designed for process reliability under demanding cutting conditions.

The DSA drill is optimized for heat-resistant alloys and titanium alloys, which are commonly used in aerospace, energy, and other high-performance applications. Its cutting edge design helps reduce heat generation during machining, while the specialized coating supports longer tool life.

The drill geometry is engineered for stable cutting performance, helping reduce the risk of chipping or sudden tool failure. This makes the DSA series a suitable choice for operations that require long tool life, consistent hole quality, and reliable machining of materials with poor machinability.

For buyers comparing carbide drill options for aerospace or energy-related parts, this series provides a focused solution for high-temperature alloys and titanium applications.

Best Suited For

• Heat-resistant alloy drilling
• Nickel-based alloy components
• Cobalt-based alloy components
• Titanium alloy parts
• Alpha-beta titanium alloys
• Aerospace and energy-related applications
• Operations where chipping and sudden tool failure must be minimized
• Applications requiring long tool life in difficult-to-machine materials

Available Lineup

DSAS Series — Internal Coolant Type

• DSAS-X03S060 Series（3×D）
• DSAS-X05S060 Series（5×D）
• DSAS-X03S080 Series（3×D）
• DSAS-X05S080 Series（5×D）
• DSAS-X03S100 Series（3×D）
• DSAS-X05S100 Series（5×D）
• DSAS-X03S120 Series（3×D）
• DSAS-X05S120 Series（5×D）
• DSAS-X03S140 Series（3×D）
• DSAS-X05S140 Series（5×D）
• DSAS-X03S160 Series（3×D）
• DSAS-X05S160 Series（5×D）

DSAE Series — External Coolant Type

• DSAE-X03S060 Series（3×D）
• DSAE-X03S080 Series（3×D）
• DSAE-X03S100 Series（3×D）
• DSAE-X03S120 Series（3×D）

After-Sales Support from Mitsubishi Materials

Mitsubishi Materials provides nationwide support in the United States through a network of technical centers and field experts.

Their services include:

• On-site application support
• Tool selection consulting
• Technical seminars and training
• Troubleshooting and performance optimization

This wide-ranging support helps customers maintain machining stability, reduce downtime, and improve overall productivity.

Company Information

Address	3-2-3 Marunouchi, Chiyoda-ku, Tokyo, Japan (Mitsubishi Materials Corporation)
Phone Number	+1-714-352-6100 (California Office) 800-523-0800 (Customer Service) 800-486-2341 (Technical Service)
Official Website	https://www.mmc-carbide.com/us/