What I'm doing: taking rounded granite stones and cutting the bottoms flat with an angle grinder and drilling 2-3" the other side for a flower, pen, etc. (3/8")
What I'm using: Bosch multi purpose drill bit (3/8") and a Makita 6A 5/8" hammer drill
Question: It seems like it's taking forever to drill the hole. Is the hammer drill or bit not suitable for the task? I've been at it for about 10 minutes and I'm about 1/2" into the rock: is this normal?