Hole Saws 16pcs, Diamond Drill Bit Hole Saw 6-50mm Glass Drilling Tools Hole Saws Kit for Carbon Steel, Glass Drill, Ceramic, Porcelain, Tile, Marble

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.

16pcs Diamond Hole Saw - Comes with 16 drill bits in different sizes, including 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 35 mm, 40mm, 45mm, 50mm. Laser marking, the size will be clearer than other 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 electric drills and impact drills.

Side Hole Opening and Laser Marking - Side hole design, the drill bit can eliminate waste and keep the drill bit clean; laser marking, the size mark is clearer and more durable than others, not easy to wear.

Note - Do not use it on concrete or depths greater than 1/2 to avoid reducing the diamond tip speed and lower punching pressure. Since the friction between the drill bit and the material quickly builds up heat, the drill bit must be kept wet. When using diamond drill bits, please use lubricant (water), otherwise the hollow diamond drill bit will burn.

This diamond hole saw set comes with 15 drill bits in different sizes.The opening diameters are 6/8/10/12/14/16/18/20/22/25/28/30/35/40/45/50mm, which can meet most opening needs.

Diamond hole saws are suitable for drilling hard materials such as tiles, ceramics or glass, hard PVC. Drill hard materials with low speed water without impact.

how to use?