650R, 6" x 3/4" x.050 x 10/14 Tooth, Heavy Duty Reciprocating Saw Blade, Designed Specifically For Rehabbing & Demolition Work, 44% Thicker Than Standard Blades, Unique Tooth Cutting Angle, Stays Rigid, No Vibration From Side To Side, Durable In Wood Or Metal Demolition Work, Fast, Easy Cutting, More Cuts From Each Blade.