Ultra-hard taps for ultra-hard steel made from ultra-fine particle super hard alloy with excellent abrasion resistance and impact resistance.
The "UH-CT/EH-CT" is a series of carbide taps designed to demonstrate exceptional power when threading high hardness steel with a hardness of 45 HRC or higher. It utilizes ultra-fine particle ultra-hard alloy, which excels in wear resistance and impact resistance. We offer two types: the ultra-hard hand tap "UH-CT" for ultra-high hardness steel and the ultra-hard hand tap "EH-CT" for high hardness steel. 【Features】 ■ UH-CT - Improved overall tapping accuracy and roundness of the shank - Suitable for tapping [SKD material] and [pre-hardened steel] with a hardness of 55-60 (Max 63) HRC - Recommended hole diameter is the maximum value for 6H internal thread diameter ■ EH-CT - Improved overall tapping accuracy and roundness of the shank - Suitable for tapping high hardness steel such as hot work die steel with a hardness of 45-55 HRC - Recommended hole diameter is the maximum value for 6H internal thread diameter *For more details, please refer to the PDF document or feel free to contact us.
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【Lineup】 ■UH-CT ■EH-CT *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Since our founding in 1923, the YAMAWA Group has been dedicated to researching and developing the highest quality cutting tools—such as taps, dies, and center drills—to meet the ever-evolving technological needs of the market. Guided by the founding spirit of contributing to the progress and development of Japan’s machinery industry, we continue to pursue excellence as specialists in cutting tools. YAMAWA products are trusted across a wide range of industries, from space exploration and aerospace to automotive, shipbuilding, machine tools, home appliances, and IT-related sectors—both in Japan and worldwide. Staying true to our philosophy of providing “Reliable Screw Threads”, we constantly refine our technology and quality management systems. As Japan’s first tap manufacturer to obtain ISO 9001 certification, we take pride in our heritage while striving to advance innovation and deliver cutting tools that support manufacturing around the world.