Weight:110 g Cuts circles cleanly, quickly and accurately in ceramic tiles. Tungsten carbide blade drills holes from 13-50 mm. How to Use: Circular Tile Hole Cutter Hand Drill with Adjustable Power Settings Ceramic Tile 1.) Alllow adequate clearance beneath the tile. 2.) Always use a slow drill speed, roughly 400rpm. A hand drill is preferable or a drill with variable speed power settings. 3.) Keep the drill tip and workpiece cool using water. 4.) Strictly not for use with MARBLE or PORCELAIN tiles. Material:Cemented carbide Color:Silver Size:26-100 mm Package Contents: 1 * Hole Cutter for Ceramic Tile Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.