If I can get this clip to work properly, it's great. The problem is that it's very finicky and requires constant adjustments to make it work properly, even when going from one hole to another on the same piece of wood. Sometimes it sticks like it should, sometimes it doesn't want to open at all and sometimes it doesn't get stuck at all - all three can happen without touching the adjustment button. It seems that just adjusting the neck so that one piece of 3/4" plywood attaches to another piece of 3/4" plywood at right angles should work. Maybe mine is defective, but that's the PITA to use.