This bit worked very well for cutting 3/4 inch nominal ADX plywood into pressure treated 4x4s. The groove cut was 3/4" deep and the nozzle is still good although all the smoke has seeped out. the router bit that drives this bit. The groove width was just enough that I had to gently press down on the plywood with a rubber mallet to "slide" it into the groove Very little.
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