Hi, I have a Domino 500 and when using it for the second time yesterday I put in the 8mm bit and was using it with the 50mm dominos. When I did the first cut I checked the depth and found it was only 20mm deep, even though I had set it for 25mm. I then set it at 28mm and tried again and found it still was only 20mm deep. I then checked the depth by pushing the bit out and found it stopped at 20mm and would not go any further. Is this a problem with manufacture or is there a simple way to reset the depth correctly?? Awaiting any help Thanks Kim from Australia.