Drill set wall: the 5-piece masonry drill set effortlessly penetrates a of materials such as tiles, glass, hard plastics, cement concrete, brick walls, wood and reduces cracking. Different sizes for different purposes to meet the of your work. Suitable for DIY and general construction use. DIY and general construction use. Easy installation: This porcelain tile drill is suitable for most common drills, electric drills, hand drill and bench drills, strong carbide drill bits and longer life of the Traumbrand glass drill, the double U-groove design ensures fast drilling with little dust. materials: reinforced drill heads made of durable carbide for maximum durability and resistance. Higher hardness materials are better for use with water to increase the service life. Titanium coating increases bearing resistance and . Tile and glass drills: materials with higher hardness are better for use with water to extend service life. After using the drill, please dry the water or apply the oil to prevent rust and extend the life of the drill. Colour: as shown Material: Carbide alloy Package Contents: 5 * Masonry drill set (6/6/8/10/12mm) 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.