Corediam Tools Co., Ltd.
Diameters of core drill for drilling concrete construction ranges from 25mm to 500mm.
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.