DIY Network

Jointer Comparison

Host David Thiel takes a look at the variety of jointers available.

More in Home Improvement

spiral head cutter has individual carbide teeth
Photo 3 of 3The spiral cutter head is a helical head, which means it shears the cut smoothly for an even cut.

Make Smooth Cuts(3 of 3)

Use an even bigger jointer to work on boards up to eight feet. This jointer has a spiral head cutter. The spiral head cutter has individual carbide teeth. All four sides of the teeth are sharp, so if one of the teeth gets dull, unscrew it and give it a quarter turn. Screw it back down and you’re ready to cut.