[Add Versatility to Your Tool]5 Pieces of Dry diamond drill bits kit for drilling holes, and 6mm carbide drill bits [High Quality Diamond Bits]Great for drilling clean holes to hard materials especially tiles, porcelain ground, ceramic glass mirror marble stone masonry brick (not for cement, metal, tempered glass, wood, plastic) [Dry Drilling Design]Diamond drill bit contains cooling wax, Which can reduce the use temperature, dry drilling without water and less pollution. Using them with a drill ( 6mm carbide drill bits)guide to achieve precise drilling results. The diamond drill bits adopts a circular design that is widely used such as hand drill, bench drill [High Quality Materials]Dry Diamond Drill Bits set is made of High-quality materials, which makes them , efficient, and to wear and tear. They are designed for dry drilling operations, meaning you don't need to use water, coolant, or lubricant. This feature can help save time and reduce mess [Easy to Carry]This Diamond Drill Bits set comes with a portable storage case for convenient use and store.The compact size is easy to place in any location and does not take up storage space Material: Metal colour: blue Package Contents: 5 x Dry diamond drill bits(5/6/8/10/12mm) 1 x carbide drill bits 6mm Only the above package content, other products are not included. Note: Light reflection 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.