Hex Shank Dry Hole Saw Drill is small in size, light in weight, easy to store and use, and does not take up too much space Drill Bit is suitable for drilling and marble, masonry, concrete, tile/ceramic, glass, hard plastic, etc The diameters of the Dry Drill Core Bits are 6MM, 8MM different sizes can meet your daily drilling needs Vaccum Brazed Drill Bit is made of steel, strong and wear-resistant, not easy to damage, and can be used for a long time When the Hexagonal Shank Drill Bit is drilling, the wax will melt to lubricate and cool the drilling without adding water Specification: Colour:black Material:steel Package Contents: 2 * Diamond Drill bits 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.