Review on 💪 Powerful Performance: DEWALT DW5207 7 Piece Premium Percussion Set by John Hall

When installing the bike hooks, I drilled the holes twice with the same drill bit on the same concrete surface, the only difference being the drill bits. So this is a very good comparison test that I hope will be useful. Tool used: Craftsman CMED741 rotary hammer. I didn't line them up quite right either, because moving them would cause the drill to have trouble penetrating. Dewalt Masonry Drill Bits (from this set): Each 1.25 inch deep hole took 1 to 2 minutes, with much less physical effort. He broke through much faster, so he stayed put. Conclusion - I never expected to find such a large variance. At first I almost sent the drill back because I thought it was bad until I used a better drill. The Dewalt drill was literally 10 times better. Note: I suspect that the reduced force will likely increase the life of the drill bit as well.