Features: _x000D_ 1. Suit for 4/5/6/7/8/10/12mm drill bits. _x000D_ 2. Designed to drill glass, ceramic tiles, marble. _x000D_ 3. Attaches to most tiled surfaces by means of its lever operated vacuum base. _x000D_ 4. Great for those hard to reach awkward areas like drilling horizontally in tiled wall or vertically in floors is much easier with this guide. _x000D_ 5. Advanced thickening engineering plastic wear-resistant and durable. Made of high quality sealed bearings for high strength and durability. Easy to store and reuse. _x000D_ 6. Rugged grip, easy to move and easy to use. The drill base can be easily attached to a smooth surface with a strong grip, so the drill guide does not move, making your operation smoother. It makes the holes in the tiles more accurate. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Condition:100% Brand New _x000D_ Material: Carbon steel _x000D_ Color: As shown in the picture _x000D_ Drill Range: 4/5/6/7/8/10/12mm _x000D_ Steps: _x000D_ 1. Check the suction cup and the glass/tile for any debris, to prevent the suction cup from being sucked, and then place the positioner flat on top._x000D_ 2. Press the black handle flat to absorb it on the glass/tile._x000D_ 3. Place the drill bit in the hole of the corresponding specification and carefully punch it._x000D_ _x000D_ _x000D_ _x000D_ Package List: _x000D_ 1*Hole Opening Locator