Olson Pin End Blade Assortment, Teeth Type: Regular, 5 in L, Applicable Materials: Hardwood, Softwood, Plywood, MDF, Particle Board, Package Type: Pack, Package Quantity: 18, Suitable for: Sears Craftsman, Penn State, Delta, Ryobi 15 in and 16 in Scroll Saws, Includes: (1) 41101 Regular Tooth, 0.1 in W x 0.018 in Thick, 15 TPI (1) 41201 Regular Tooth, 0.1 in W x 0.018 in Thick, 10 TPI (1) 42401 Skip Tooth, 0.07 in W x 0.01 in Thick, 18.5 TPI