The SUPER DADO uses chippers with 4 teeth each instead of the standard 2, making dado bottoms super smooth. Anti-kickback technology lets you feed at a controlled rate, and helps prevent climbing when used on a radial arm saw. An extra stiff saw plate increases dado accuracy. Unlike most dado sets, the SUPER DADO includes a 3/32" chipper making exact set-ups easy, and providing a 1/4" to 29/32" range. Dado shims are included, making it easy to deal with today’s undersize plywood. Imagine dados so clean and tight it will be a shame to hide them! 5/8" arbor holes.