Review on 🔧 DEWALT DW5471: 8" and 10" Carbide for Optimal Precision and Durability by Delbert Potter

I bought a 1 inch Bosch bit which died after drilling ten holes in granite field stone. I bought this as a replacement. Twenty holes so far and no problem. However, I strongly recommend: Pre-drilling with a smaller drill, e.g. B. 5/8", resulting in less stress on the larger drill bit and faster overall cutting.