Dry or wet drilling for porcelain tile, ceramic tile, granite, marble, stone.
5/8"-11 female thread, used on 5/8” thread angle grinder. Recommended RPM: 6000; Maximum RPM:11000. Please don't use the hammer mode if you use the drill bits on electric drill through the adapters.
All bits are produced in vacuum brazed technology, longer life than electroplated drill bits.
U Shape incision, reduce cutting resistance and improve drilling speed.