3 Pack, 4" x 5/16" x .058" x 10 Tooth, U-Shank Style, Jig Saw Blade, Down Cutting In Soft Clean Wood Between 3/16" - 1-1/4", Power Blast Technology Increases Durability, Reverse Teeth Cut On The Down Stroke To Provide Clean Cuts On The TopOf The Material, Precision Ground Teeth With Optimized Tooth Angles Provide A Clean Finish.