Actually, changing blades on the DW734 is real easy. The planer comes with all the tools needed to change blades onboard. The blades are two sided so you just flip them over when they dull. What makes it easy to change is they are indexed, they fit into the head onto pins so you don’t have to adjust them. Unfortunately, because they are indexed, you can’t adjust them which means if you sharpen them you will lose blade height and will not cut properly. This means you have to replace them. I use mine regularly and have flipped them over one time. Fortunately, the price of replacement blades is about the same as having them sharpened professionally. It’s the price you have to pay for having a great planer.