Save time with this simple tool that ensures accurate marking of your patterns Creates 1/4" deep square cuts in the edge of patterns Used to make notches on slopers or patterns Cuts 1/4" x 1/16" markings Suitable for make notches on cardboard, oak tag and paper patterns to mark the seam allowance This Universal Pattern Notcher is a tool which creates 1/4" deep square cuts in the edge of patterns. Save time with this simple tool to ensure accurate marking of your pattern key points.