The Dewalt 13-in three knife, two speed thickness planer is built to handle large cuts in wide materials with strength and minimum hassle. Its two speed gear box maximizes flexibility, allowing users to optimize cuts per inch at 96 or 179. With a fan-assisted chip ejection system that vacuums chips off the cutter head, you can be confident of a clear workspace. The three knife cutter-head simplifies knife changing, saving time. A 19-3/4-in cast aluminum base is twice as rigid as a standard 10-in base, providing the toughness you need, regardless of the job.