Review on YG 1 Uncoated Overall Cutting Diameter Cutting Tools and Milling Accessories by Mike Bucher

This is a medium quality end mill made in South Korea. I bought a pair of these and both are the same quality. The overall finish is good, the edges are clean with no chips or burrs. The corners are sharp. However, the main cutting edge of the flute is not properly sharpened, which is often found on "cheap" end mills. There is still unsharpened material equal to the diameter of the body and running the full length of the flute. This means you have to put more pressure on the cut when side milling. The surface quality is not optimal. I can use them as they are, but I wouldn't buy them again.