Your mileage may vary. But I was surprised when the tip broke off on one side and punched a hole through the brass. There was no lateral movement, it was in the drill press, properly aligned with the part held securely in a vise. This was also the very first use of this drill. If this happens with brass, I highly doubt these bits can work with hardened steel as they claim. The price is good, but buy at your own risk.
Bit set DeWALT DT7969-QZ, 32 pcs.
39 Review
𧱠Bosch 2607017164 Piece Setter Masonry: Advanced Tools for Precision Masonry Work
20 Review
Cordless drill driver BOSCH GSR 120-LI (06019G8020/06019G8000)
54 Review
Tool set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
45 Review