The only set to use if you are making joints in plywood. Since plywood thickness tends to be thinner than nominal dimensions, CMT offers you a way to work around the problem - our Plywood Groove Set includes three specifically selected bits designed for making clean grooves and dadoes for accurate fitting joints. Use our 23/32" bit for ¾" thick ply, 31/64" bit for ½" ply and our 15/64" for ¼" ply. No gaps or sloppy joints, guaranteed.