I am a qualified metal worker and use my band saw 3 to 5 hours a week. I usually use Lennox canvases but Starrett was a bit cheaper so I gave it a try. Once I installed the blade, I noticed a serious "bump" every time the welded part went past the shank. Not very good. The blade lasted about a month and a half, about 20 hours, then it broke (although it stayed sharp). It was smooth use at medium speeds on a wide, flat work piece without ramming through an oddly shaped work piece.