Pneumatic Drills

I was getting irritated with my core bits because it keeps on breaking. A friend then told me to try the coilhose pneumatics type of core drills because it will last longer. With the new system, uneven hand pressure is eliminated for it is the pneumatic that applies even pressure into the core bit therefore greatly minimizing breakages. I think I’ll try that one. With core bit prices being quite high, I need to look for new ways of cutting holes in hard surface.