Bought to pre-drill concrete screws for fastening plywood to concrete slabs. Not a particularly difficult task, but bits (I bought two) naturally dulled after a few , that's a terrible achievement. Looking back I can honestly say I can't remember exactly what RPM the drill was at - maybe the RPM was too high. But as for me, next time I'll try a different piece.
🔷 Premium CO Z Cobalt Aluminum – Available in Multiple Sizes for Ultimate Versatility
7 Review
Bosch Clic Change Self Centering Assortment CC2430: Simplify and Accelerate Your Project
4 Review
IRWIN Tools Countersink Set 5 Piece - Model 1877791
3 Review
🔧 MulWark Diameter Screwdriver: Efficient Tool for Assembling Furniture
5 Review