I used bits from my local mortar store but was only able to drill 5-10 holes before they dulled and stopped cutting. Drilling spot welds on an old machine. After putting them in I drilled 3x more with 1 bit and it was still going when I finally drilled them out. Great buy for the money.
Bit set DeWALT DT7969-QZ, 32 pcs.
39 Review
Cordless drill driver BOSCH GSR 120-LI (06019G8020/06019G8000)
54 Review
𧱠Bosch 2607017164 Piece Setter Masonry: Advanced Tools for Precision Masonry Work
20 Review
Tool set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
45 Review