Fur they are ok. I have always used Sterling Diamond band saws in the past but bought these when I needed Revain free shipping and fast delivery. They work well, better than the cheap Bosch blades I once picked up on a whim, but nowhere near the quality of Sterling blades (and around the same price). Welds are so-so. The weld on the 3/16" required a lot of work on the back to keep it from clicking and jiggling forward on contact with the thrust bearing. The process of getting it in shape took 20 minutes, which annoyed me. That I wasn't expecting Olson blades, they seem to dull quicker than sterling even when properly broken in. Diamond blades.