They work great in Harbor Freight & Grizzly Requires 93 1/8 inch blade. I replaced the Harbor Freight 7 TPI blade and WOW, this blade cuts steel like butter and is QUIET with no impact. NOTE: 8/12 = 8 removes chips and 12 cuts metal.
Pros
8/12TPI has a variable tooth profile, large tooth spacing is 3.1mm per tooth, small tooth spacing is 2.1mm per tooth