These knives are easy to register(about half the set-up time of my old straight knives) and cut very nicely. They do not start out as sharp as my old HSS knives but last much longer. The spiral head cutter works very well on highly figured and dense tropical woods. I have had this planer for 3 years in daily use an have replaced the knives 3 times so the cost of sharpening my old knives was about twice as much for the same time period.
"This is a great way to buy high quality tools for the price of lower quality tools. CPO stands behind what they sell. I feel I can buy risk free, and if there is a problem CPO will step up and make it right" - Geoff D.