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, designed to meet a variety of drilling needs High Performance: These heavy-duty mini diamond drill bits feature a pointed tip for efficient drilling, providing a practical and faster experience. They are ideal for drilling holes and polishing various materials, helping save time and effort Versatile Use: The precision-sized diamond drill bits are suitable for use on materials such as jade, metal, gemstones, pendants, and cobblestone Groove Design: The drill bits feature a groove design that facilitates efficient debris removal during drilling, reduces heat buildup, and enhances overall drilling performance Durable Material: Made from high-quality diamond material, these drill bits are finely polished, durable, dimensionally accurate, and resistant to rust and deformation for long-term use Color: Silver Material: Diamond Package Contents: 1 set x Diamond Drill Bits Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting effects and monitor settings may cause slight color variations between the image and the actual product. Measurement tolerance is +/- 1-3 cm.