20 Pcs Diamond Drill Bits Set – Twist Diamond Tip Drill Bit, Heavy Duty Mini Diamond Drill Bit Set for Various Applications Complete Accessories: This package includes 20 pieces of twist diamond tip drill bits in 10 different diameters: 0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, and 4.0 mm. This variety meets diverse drilling needs for precision work. Efficient Performance: These heavy-duty mini diamond drill bits feature a pointed design for enhanced accuracy and faster drilling. They are ideal for creating holes and polishing hard materials, offering time-saving and effortless operation. Versatile Use: Designed with precise sizing, these diamond-coated drill bits are suitable for use on materials such as jade, metal, gemstones, pendants, and stone surfaces. Groove Design: The drill bits feature a groove structure that facilitates efficient debris removal during operation, reduces heat buildup, and enhances overall drilling performance. This design contributes to a smoother and more effective user experience. Durable Construction: Made from high-quality diamond material, these drill bits are finely polished for strength and durability. They maintain dimensional accuracy, resist rust and deformation, and offer long-term reliability. Color: Silver Material: Diamond Package Contents: 1 set x Diamond Drill Bits Note: Light reflection and display differences may cause slight variations between the product color in images and the actual item. Measurement tolerances may vary by +/- 1-3 cm.