Hello got a Microtech Ultratech had it about a month started acting up retracts hard fires not as hard and doesn't lock out always, if you put lighter fluid in it it will work fine for a while , I suspect it needs to be taken apart and cleaned ,my first microtech, I have no tool to work on it with , HERE IS SOMEONE A DEAL, WHO HAS A TOOL OR WANTS TO SPRING FOR ONE AND WANTS A GOOD USER $145.00 shipped sales to the U.S. only pay pal fine Thanks Dwight dmoore@tgtel.com