Smart Counter sink tool didn't work
The smart tool didn't work for me, because they did not provide a drill bit with the correct depth. My deck is hardwood and the square seated SS screws would break if the pilot hole was not to the full depth of the screw. The bits also have a flat side to lock in place in the smart bit making improvising with your own bits harder. I'm still smarting from the wasted $40.
I bought another one and still had problems finding the correct drill bit, but in the end it's one saving grace was the strength of the lock screw that holds the bit in place and I was able to get something that worked.
Regards
Zanne