Ate through concrete effectively but after an hour of grinding the metal itself was ground down almost completely and started sparking.
A single use disc.
PEGATEC Quality 2X0 04X7 Stainless Aggressive
10 Review
🛠️ Efficient Sanding Power: BLACK+DECKER BDERO100 Random Sander for a Flawless Finish
9 Review
KSEIBI 4 1/2" Zirconia Corundum Flap Discs | Grit #60, 10Pack | Sanding & Grinding Wheels
9 Review
KSEIBI 686012 4 1/2 Inch Flap Disc 80 Grit Aluminum Oxide 10 Pack Auto Body Sanding Grinding Wheel.
18 Review