210 2231624
210 2231624
The YG-1 is one of the leading and fastest-growing global forces in the field of cutting tool manufacturing, with headquarters in Incheon, South Korea. The company was founded in 1981, now counting more than four decades of experience and development, and has established itself as the largest manufacturer in South Korea and one of the top five worldwide in the specialized field of end mills. The company operates 15 production plants and more than 30 subsidiaries worldwide, serving customers in more than 75 countries.
Our company, ΤΡΙΑΝΤΑΦΥΛΛΟΥ Κ ΣΙΑ Ε.Ε. is the official representative of YG-1 in Greece. We have more than 3,000 YG-1 product codes in stock, a number that continues to increase. In addition, we can support the entire range of the YG-1 catalog, which includes more than 50,000 different product codes.
The YG-1 offers one of the most comprehensive ranges of cutting tools worldwide, covering every metal machining requirement. Its production is based on modern technology and advanced materials for maximum performance and service life.



HSS-E Counterbores according to DIN 373 (Hole without thread)Specially designed for creating seats for Allen heads, these milling tools offer high ...
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The YG-1 is one of the leading and fastest-growing global forces in the field of cutting tool manufacturing, with headquarters in Incheon, South Korea. The company was founded in 1981, now counting more than four decades of experience and development, and has established itself as the largest manufacturer in South Korea and one of the top five worldwide in the specialized field of end mills. The company operates 15 production plants and more than 30 subsidiaries worldwide, serving customers in more than 75 countries.
Our company, ΤΡΙΑΝΤΑΦΥΛΛΟΥ Κ ΣΙΑ Ε.Ε. is the official representative of YG-1 in Greece. We have more than 3,000 YG-1 product codes in stock, a number that continues to increase. In addition, we can support the entire range of the YG-1 catalog, which includes more than 50,000 different product codes.
The YG-1 offers one of the most comprehensive ranges of cutting tools worldwide, covering every metal machining requirement. Its production is based on modern technology and advanced materials for maximum performance and service life.



HSS-E Counterbores according to DIN 373 (Threaded hole)Specially designed for creating seats for Allen heads, these milling tools offer high precis...
View full details
The HEPYC Cutting Tools, headquartered in Spain, has been operating for over 70 years as a manufacturer of specialized cutting tools, from taps and drills to milling and cutting operations. Its products include standard and special drills, suitable for cutters in hard materials, end-mills, and an extensive range of threading tools (threading taps/dies) for various materials such as steel, stainless steel, aluminum, copper, etc.
Our company, ΤΡΙΑΝΤΑΦΥΛΛΟΥ Κ ΣΙΑ Ε.Ε. is the official representative of HEPYC in Greece since 2018 and we can support the entire range of its catalog, which includes more than 15,000 different product codes.
The HEPYC Cutting Tools, headquartered in Spain, has been operating for over 70 years as a manufacturer of specialized cutting tools, from taps and drills to milling and cutting operations. Its products include standard and special drills, suitable for cutters in hard materials, end-mills, and an extensive range of threading tools (threading taps/dies) for various materials such as steel, stainless steel, aluminum, copper, etc.
Our company, ΤΡΙΑΝΤΑΦΥΛΛΟΥ Κ ΣΙΑ Ε.Ε. is the official representative of HEPYC in Greece since 2018 and we can support the entire range of its catalog, which includes more than 15,000 different product codes.
Step drills are specialized cutting tools designed to drill and enlarge holes in thin to medium-gauge materials using progressive “steps” that deliver multiple diameters with a single bit. They are widely used to produce clean, round holes in sheet metal, aluminum, plastics, and stainless steel, helping reduce burr formation and minimizing grabbing compared with conventional twist drills.
In this collection you’ll find step drills from Yg and Hepyc in a variety of diameter ranges, step increments, flute designs, and working lengths, with shanks such as round or hex for use in drills and drivers. Options include wear- and heat-resistant coatings, as well as geometries engineered for smoother chip evacuation and improved surface finish, supporting consistent accuracy and repeatability in production and maintenance work.
These tools are commonly selected by maintenance technicians, electrical installers, machine shops, and QC teams for applications like electrical enclosures, junction boxes, HVAC panels, metal fabrication, and general manufacturing where fast diameter changes without tool swaps improve efficiency.
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