I use these in a small hobby sawmill that was built from a 12" Delta band saw. I used Powertec 3TPI blades and cut through about 40 linear feet of 12" wet hardwood logs before the blade became too dull to cut. These Olson blades will successfully go 100 LF or more on the same stock before needing replacement. I sawed regularly for a whole year until I found a saw blade I really liked and this is it. customer for life.