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Sumitomo Electric Carbide is a world leader in the research, development and production of tools for metal cutting industries. Our offering of systems and materials are as varied as your needs.

Turning/Boring Systems
Improve surface finishes and productivity using products from our wide range of turning and boring systems. Our ever-evolving line features the ingenuity and rigidity to handle your most demanding application requirements.

Milling Systems
Solid carbide end mills are ideal for machining most steels and hard-to-cut materials such as Inconel®, stainless steels, titanium alloys and tool and die steels. Sumitomo has established itself as a world leader in the aerospace industry with this group of products. Our wide range of indexable end mills feature advanced, high performance characteristics. They are available to perform a variety of operations, including shoulder milling, slotting, ramping, pocketing, drilling and helical boring.

Drill Systems
Sumitomo leads the industry in the design and application of solid carbide drills, indexable insert drills, replaceable tip drills and more for steel, stainless steel, super alloy and cast iron applications.

PCBN and PCD Grades
Through advanced metallurgy research, Sumitomo provides a wide variety of polycrystalline cubic boron nitrides (PCBN) and polycrystalline diamonds (PCD) that contribute to the advancement of technology and cutting tool performance. Ideal for high-speed, high-hardness applications, our PCBN can take on alloy steels with hardnesses greater than 45 Rockwell C, as well as a variety of types of cast irons and cast steels. Our PCD grades DA2200, DA150, DA200 and DA90 provide the toughness of cemented carbide and wear resistance of diamond. It was specially developed for machining of non-ferrous materials. This truly revolutionary grade is available for turning, milling, boring and other demanding machining applications.

Ultra Precision cutting and PCD Reamers
Contact ALMT Corp. - Yoshi Toda at 800-239-5177 or email

Download Precision Diamond Tooling Catalog.



High Density PCD Diamond Die Blanks:
• Largest range of sizes
• Most grades offered (1,3,5,12,25 microns)
* Increased abrasion resistance
• Highest percentage of diamond (high density)
Sumicrystal CD Blanks
• Consistant piece to piece uniformity
• Increased die life
• Improved wire finish

MASTER TOOL (Sumitomo Electric Carbide Manufacturing, Inc.)
Innovators of special design and build tooling systems



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