This is a Master Mechanic 7-1/4" (184mm) Steel 140 Tooth Plywood/Paneling Wood Cutting Blade Model Number MM1106. This Blade is Brand New in Original Packaging. Features and Benefits: *Steel Blade *140 Tooth For Clean Smooth Cutting in Plywood, Paneling and Other Thin Materials. *5/8" (16mm) Round Arbor Hole with Diamond Knockout.