Steel City Tool Works 40610CH 6-Inch Cast Iron Bench Jointer with Helical Cutter Head Patented Helical Head: Helical cutterhead has indexable HSS inserts for a superior finish, longer cut time, and quieter operation Conveniently Located 2-1/2-Inch Dust Port: Provides more efficient dust collection than an open or partially enclosed stand unit Cutterhead Speed: 11800 RPM. Number of Knives: 12 Two Sided HSS Inserts Table Specifications: Overall Length: 30-Inch Length of Infeed: 14.2-Inch Length of Outfeed: 14.2-Inch Height of Table: 0.94-Inch Fence Size: 19.6-Inch x 4.3-Inch