This set is very accurate and well made for the money. Of course, you can spend 3-4 times more on such a set, but will you get 3-4 times more accuracy and usage? I would rather buy this set 3-4 times. Reviews that provide less than stellar feedback. Are you using the correct speed on your router for the type of wood you are cutting? Did you set the drill to the correct depth in the collet (best is 75% to 80% of the shank in the collet)? I have no issues with this set and in fact after setting it up correctly and using a template I used a slot cutter to make the tongue. No problems from this user.
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