Features Superior Cutting Strength: Nickel-plated diamond dustproof coating ensures impressive performance and durability for various materials Effortless Operation: Simple water lubrication is all that's needed, providing a hassle-free experience while cutting Precision Drilling: Enjoy clean, neat holes with no edge folding or tremors, thanks to low cut resistance and fast drilling speed Versatile Applications: Perfectly suited for glass, ceramics, marble, tiles, and granite, making it an essential tool for any project Long-lasting Quality: Crafted from high-quality steel with a diamond dust coating, ensuring exceptional performance and extended lifespan Features: 1、Nickel‑plated diamond dustproof coating provides excellent performance and cutting strength. 2、The is simple and only needs water lubrication. Bring you more convenience. 3、The holes are neatly cut, no edge folding, no tremor, low cut resistance, fast hole drilling speed and easy chip removal. 4、Has wide applicability, very suitable for glass ceramics, marble, tile granite, etc. 5、High‑quality steel and diamond dust coating, hard, , good working performance and long service life. Specification: Condition: 100% Item Type: Diamond Drill Bit Material: Steel + Diamond Dust Coating Color: As the Picture Shown Size: Approx. 6mm/0.2in, 8mm/0.3in, 10mm/0.4in, 12mm/0.5in, 14mm/0.6in, 16mm/0.63in, 18mm/0.7in, 20mm/0.8, 22mm/0.9in, 25mm/1in, 26mm/1.02in, 28mm/1.1in, 30mm/1.2in, 40mm/1.6in, 50mm/2in Package List: 1 x 6mm/0.2in Diamond Drill Bit 1 x 8mm/0.3in Diamond Drill Bit 1 x 10mm/0.4in Diamond Drill Bit 1 x 12mm/0.5in Diamond Drill Bit 1 x 14mm/0.6in Diamond Drill Bit 1 x 16mm/0.63in Diamond Drill Bit 1 x 18mm/0.7in Diamond Drill Bit 1 x 20mm/0.8in Diamond Drill Bit 1 x 22mm/0.9in Diamond Drill Bit 1 x 25mm/1in Diamond Drill Bit 1 x 26mm/1.02in Diamond Drill Bit 1 x 28mm/1.1in Diamond Drill Bit 1 x 30mm/1.2in Diamond Drill Bit 1 x 40mm/1.6in Diamond Drill Bit 1 x 50mm/2in Diamond Drill Bit Package List 1 x 6mm/0.2in Diamond Drill Bit 1 x 8mm/0.3in Diamond Drill Bit 1 x 10mm/0.4in Diamond Drill Bit 1 x 12mm/0.5in Diamond Drill Bit 1 x 14mm/0.6in Diamond Drill Bit 1 x 16mm/0.63in Diamond Drill Bit 1 x 18mm/0.7in Diamond Drill Bit 1 x 20mm/0.8in Diamond Drill Bit 1 x 22mm/0.9in Diamond Drill Bit 1 x 25mm/1in Diamond Drill Bit 1 x 26mm/1.02in Diamond Drill Bit 1 x 28mm/1.1in Diamond Drill Bit 1 x 30mm/1.2in Diamond Drill Bit 1 x 40mm/1.6in Diamond Drill Bit 1 x 50mm/2in Diamond Drill Bit