I think it needs a different tension than their 5/8" blade because it just keeps coming loose and I finally gave up and broke it. Install a 5/8 inch knife. I'm really not impressed with this and the cheap plastic adjustment knob on my 10" Wen band saw broke trying to adjust the bearings next to the saw blade. The Wen saw is only good for very thin cuts. The high cutting accuracy with thick wood is beyond question. .