Poorly made in China. The mandrel included in the kit is not suitable for the hole saw. The two pins on the mandrel did not match the two holes in the hole saw mandrel and did not match the other two at all. I bought a Milwaukee gazebo hoping it would be better, but it didn't fit the holes at all. The hole saw appears to be accurate or very close to the actual 6" diameter, but that's about the only good thing I can say about this hole saw. i will return it