Got it today and tried to drill some holes in MDF for the MFT template, took 10 minutes for a 3/4" Hole? Stone to try to sharpen, not worth returning...sometimes you win...sometimes you lose! It was a loss this time :) One good thing is that I now have a piece of wood that you can learn to sharpen on my new power grinder I bought. PS gave 3 stars for accuracy as the hole is true to size (20mm), it just took forever to drill through.