No lock on the Dewalt 735 and, when the infeed/outfeed extension tables are set correctly, not noticeable snipe either. While I now use an add-on digital gauge to determine the wood thickness, I just used the original depth gauges on the planer. Never had one problem with getting a board out that wasn't the thickness I intended. It is a great planer. Mine is about 10 years old and still does a great job.