Review on Capri Tools CP21050 21050 Puncher by Evan Beougher

This set of rock drill bits was perfect for my needs. I use it to pierce some old metal rivets and buttons and it works like a charm with almost no effort. Previously I used a drill to remove the buttons and rivets which took about 2 minutes each with the risk of damaging the item. Now it takes about 20 seconds and works without any problems. I've used it about 30 times and every time it stings like the metal is oil.