Hi there, I am hoping to engrave finely detailed numbers into a cast bronze sculpture, I started out using a Dremel multi pro 395 with a 3/32nd diamond bit, but the lines weren't thin enough and I didn't have the necessary precision down. I have never done engraving before, so forgive my ignorance, it's just been tough finding out what tools and bits are used for fine detail bronze engraving. Any suggestions would be greatly appreciated. Thanks!