Diamond Drill Bit Set, 6-50mm Glass Hole Saws for Diamond Coating, Carbon Steel for Glass, Ceramic, Porcelain, Ceramic Tiles, Marble (16PCS)

Diamond Coating and Nike Nickel Alloy Surface - Diamond coating can increase the drilling speed and make the drill bit sharper; Nickel-plated surface can extend the service life and improve the corrosion resistance of the surface; the thickened diamond coating on the top can provide excellent cutting force to achieve maximum drilling effect.

Diamond Hole Saw - 16 pieces - Comes with 16 drill bits in different sizes, including 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 35mm, 40mm, 45mm, 50mm. Laser marking, the size will be clearer than others sizes and not easy to wear.

Application - Suitable for drilling holes in glass, marble, ceramic tiles, block pots, fiberglass tiles, slate marble, light granite, etc. Will be used with all power drills and drills percussion.

Side Hole Opening and Laser Marking - The side hole design allows for easy waste removal and keeps the drill bit clean; the laser marking provides a clearer and more durable size mark than others, making it less prone to wear. Note - Do not use on concrete or at depths greater than 1/2 inch to avoid reducing the diamond tip speed and drilling pressure. Friction between the drill bit and the material quickly builds up heat. The drill bit must be kept moist. When using diamond drill bits, please use a lubricant (water); otherwise, the hollow diamond drill bit will overheat and burn. Note: All data is measured manually. Please allow for a 1-3 cm error due to differences in lighting and display. There may be slight color variations; please refer to the actual item received.