Horrible proprietary tip design
"I bought this as I’ve been very satisfied with the quality of all of the other Kreg jigs that I have and I have several. The tip design is very poor and strips out very easily even after a few screws. I had to buy several extra tips just to try to finish my project and gave up and am just using other screws with a square tip, actually using my Kreg square driver tip. I’ve been doing woodworking for most of my life and have never been this disappointed with a product. I still have a couple of tubs of screws left and tips and don’t know what to do with them."