These are the top quality scroll saw blades woodworkers ask for by name - OLSON! Pinned scroll saw blades are for machines that require 5" pinned blades. Perfect for Sears Craftsman, Penn State, Delta, Ryobi, and all 15" and 16" imported scroll saws that require pinned blades. Find all you need in one quick and easy assorted package. This package has 6 of each: #424P, #411P, #412P.