Sumitomo Electric Hardmetal
Index
Improving drilling efficiency and ensuring stable tool life are key challenges in modern manufacturing.
This article introduces Sumitomo Electric Hardmetal’s solid carbide drill series for engineers looking to reduce machining costs.
Source: Sumitomo Electric Hardmetal Official Website
https://www.sumitool.com/en/
https://www.sumitool.com/en/
Recommended
Applications
for Sumitomo
Electric Hardmetal
Sumitomo Electric Hardmetal offers cost-effective solid carbide drills designed to reduce tool wear and chip buildup. The combination of wear-resistant coatings and internal coolant delivery enhances tool life and machining stability.
These drills are ideal for a wide range of industries that require reliable, uninterrupted operation.
Note: Performance may vary depending on cutting conditions such as speed, feed rate, coolant, and machine rigidity.
Key Products from
Sumitomo Electric
Hardmetal
MULTIDRILL MDA Series
Source: Sumitomo Electric Hardmetal Official Website
https://www.sumitool.com/en/products/cutting-tools/drills/mda.html
https://www.sumitool.com/en/products/cutting-tools/drills/mda.html
Overview
The MDA series is designed specifically for machining non-ferrous materials such as aluminum casting alloys (ADC, AC), 7075 (Al-Zn-Mg), and 5052 (Al-Mg). It is ideal for precision applications in aerospace and automotive parts production.
Key features include:
- RD thinning for excellent self-centering
- Wide double margins to reduce hole deflection
- AURORA Coat X for a smoother surface finish and reduced chip adhesion
Compatible Materials
- Aluminum casting alloys (ADC, AC series)
- Al-Zn-Mg alloys (e.g., 7075)
- Al-Mg alloys (e.g., 5052)
Lineup
- Diameter 1.0–3.0 mm (approx. 0.039–0.118"): 3D, 5D, 10D, 15D, 20D
- Diameter 3.1–12.0 mm (approx. 0.122–0.472"): 3D, 5D, 10D
MULTIDRILL MDH Series
Source: Sumitomo Electric Hardmetal Official Website
https://www.sumitool.com/en/products/cutting-tools/drills/mdh.html
https://www.sumitool.com/en/products/cutting-tools/drills/mdh.html
Overview
The MDH series is engineered for high-efficiency drilling in carbon steels, alloy steels, cast iron, and ductile iron.
It features:
- HF coating combining TiAlCrSi multi-layer film with a TiAlB layer for wear and heat resistance
- RP thinning and large chip pockets for low cutting resistance and smooth chip evacuation
These characteristics enable stable machining even at high feed rates. In cylinder part processing, this drill has achieved a 56% reduction in cycle time
*Source: Sumitomo Electric Hardmetal Official Website【PDF】
https://www.sumitool.com/en/downloads/assets/mt-catalog/TN545.pdf
https://www.sumitool.com/en/downloads/assets/mt-catalog/TN545.pdf
Compatible Materials
- Carbon steel
- Alloy steel
- Tempered steel
- Cast iron
- Ductile iron
Lineup
- MDH...S04H03 (Diameter 3.0–4.0 mm [approx. 0.118–0.157 inch], 3×D)
- MDH...S04H05 (Diameter 3.0–4.0 mm [approx. 0.118–0.157 inch], 5×D)
- MDH...S04H08 (Diameter 3.0–4.0 mm [approx. 0.118–0.157 inch], 8×D)
- MDH...S06H03 (Diameter 4.1–6.0 mm [approx. 0.161–0.236 inch], 3×D)
- MDH...S06H05 (Diameter 4.1–6.0 mm [approx. 0.161–0.236 inch], 5×D)
- MDH...S06H08 (Diameter 4.1–6.0 mm [approx. 0.161–0.236 inch], 8×D)
- MDH...S08H03 / S08H05 / S08H08 (Diameter 6.1–8.0 mm [approx. 0.240–0.315 inch])
- MDH...S10H03 / S10H05 / S10H08 (Diameter 8.1–10.0 mm [approx. 0.319–0.394 inch])
- MDH...S12H03 / S12H05 / S12H08 (Diameter 10.1–12.0 mm [approx. 0.398–0.472 inch])
- MDH...S14H03 / S14H05 / S14H08 (Diameter 12.1–14.0 mm [approx. 0.476–0.551 inch])
NeXEO MDE Series
Source: Sumitomo Electric Hardmetal Official Website
https://www.sumitool.com/en/products/cutting-tools/drills/nexeo-mde.html
https://www.sumitool.com/en/products/cutting-tools/drills/nexeo-mde.html
Overview
The MDE series is a general-purpose solid carbide drill that handles a wide range of steels, including high-carbon steel, alloy steel, stainless steel, and die steel.
The drill uses a TiAlCrSi-based NX coating for excellent wear and heat resistance and an ACT100 fine-grain carbide substrate, enabling stable, long-life machining across many materials with fewer tool changes. This makes it well suited to production sites that handle diverse work, such as automotive parts and molds.
RX thinning and an arc-shaped cutting edge break chips and reduce cutting forces, while the internal-coolant double-margin design improves hole accuracy and helps prevent chip packing and defects for more consistent machining quality.
Compatible Materials
- Mild steel / low-carbon steel
- General steel / medium-carbon steel
- Alloy steel
- Tempered steel
- Stainless steel
- Cast iron
- Ductile iron
- Pre-hardened steel
Lineup
- MDE-H (internal coolant): 1.0–20.0 mm (0.039–0.787"): 3D / 5D / 8D
- MDE-E (external coolant): 1.0–20.0 mm (0.039–0.787"): 2D / 4D
- MDE-EH (hub machining): 8.8–13.97 mm (0.346–0.550"): 2D
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.
After-Sales Support
from Sumitomo
Electric Hardmetal
Sumitomo Electric Hardmetal provides comprehensive technical supportthrough its Tool Engineering Center (TEC).
Across multiple global locations—including the U.S.—TEC offers machining trials, performance evaluations, technical consultations, and remote support via TEC Live.
Training seminars and educational programs are also available to support process optimization and problem-solving at the production site.
Company Information
| Address | 1-1-1, Koyakita, Itami, Hyogo 664-0016 |
|---|---|
| Phone Number | Manufacturing Sites (USA) Chicago-Headquarters：+1-847-635-0044 Detroit Branch：+1-248-374-0434 / +1-248-374-0435 Indianapolis Branch：+1-317-859-1601 Manufacturing Sites (USA) Wisconsin：+1-262-938-6700 Ohio：+1-440-354-0600 |
| Official Website | https://www.sumitool.com/en/ |