Details:* It has strong strength and wear resistance.* Small incision resistance, increase opening speed, long service life.* Industrial grade coated carbide point with 4 cutting edges * Can be installed in hand drills, electric drills.* Suitable for drilling holes of ceramic, granite, tile, stone, wood, plastic, concrete wall.* Color: Brown (as pictures show) * Material: Carbide * Size: as pictures show* Shank: 1/4" Hex* Diameter: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm* Quantity: 7pcsPackage Contents: 7*Drill BitsNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.