YG-1 Tool Company offers its 4G series of high-performance carbide end mills. The end mills feature coating and tool geometry designed to enable longer life, higher speeds and smoother cutting on alloys ranging to 55 HRc, the company says. They are suitable for steel applications in the die/mold industry, and can be used with cobalt chrome, nickel-based alloys and other hard machining materials.
The four-flute model includes chatter-reducing features with a corner radius as small as 3/64 diameter, while the two-flute version offers diameters as small as 0.004. Also included in the series are two- and four- flute ballnose and reduced-neck tools for longer reach.