Our 3620 portable sawmill uses a 4' wide double-cut blade allowing it to cut twice as fast as any other thin kerf mill. The unit is built tough and is capable of a hard day's work. Built on a smaller scale, the SELECT 3620 boasts the same superior quality as our model 4221 and, is why this model stands out above the competition. Perfect for the sawyer on the go, it is conveniently designed for ease of set-up so that in only a few simple steps you can be up and running.