Review on 🔧 Enhance Efficiency with Norske Tools NDHSI108 Industrial Diamond by William Stewart

I used this to poke holes in the bottom of a pair of old glazed ceramic bowls to use for small flower pots. The holes are nice and clean and the bit worked quickly with very little effort. I used an old Windex spray gun to cool and oil the finish. Went like clockwork. I only drilled a few holes but the drill bit looks and feels like it's almost empty. I will define more as needed.