2 standard for your option: 6-inch/7-inch. Instantly copy any shape or a profile for woodworking, flooring, and linoleum installation. Can replicate- the detailed moldings or cut-outs around door casings and pipes. Metal pins- for long-lasting and greater - than teeth. Ideal- for measuring moldings for reproduction, duplicating spindles on the lathe, copying curves, and various other - matching jobs.