Stone Core Drill
for drilling in kinds of natural stones, like granite, marble, sandstone and so on. Usually fitting to angle grinder or a hand driller, you can drill a hole on stones. Dry Core Drill
is for dry drilling in stone blocks and other stone materials, ranging from 32mm to 162mm. Electroplate Core Drill
are mainly for stones, like granite, marble, tile and so on. All the diameter of this kind of core drills is ranging from 20mm to 102mmThey are both have good drilling performance and stable durability.