Usage Tips: Package includes: 8 diamond drill bits (0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2.0 mm, 2.5 mm, and 3.0 mm), one of each size. This set offers multiple sizes to support various drilling applications. Material: Diamond-coated with spiral design for enhanced durability and cutting performance. Designed to resist breakage and efficiently remove debris. Compatible Tools: Suitable for use with rotary tools including handheld drills, bench drills, flexible shaft machines, and angle grinders. Applications: Ideal for drilling small holes in glass, metal, seashells, jade, beads, marble, stone, drywall, and wire. Performance may vary depending on material hardness. Recommendation: Use with coolant to improve efficiency and extend tool life. Package Contents: - 8 diamond drill bits Specifications: - Material: Diamond-coated steel - Type: Drill bit set - Sizes: 0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2.0 mm, 2.5 mm, 3.0 mm - Color: Silver - Quantity: 8 pieces