Note: The color of the product shipped is based on the first image shown, and the specification and quantity are as described in the title. If a change in color or style is needed, please contact the seller within 12 hours after placing the order. Product Features: 1. Ideal for creating precise holes in various materials such as stone, agates, pearls, jade, and similar items. 2. High-quality construction for extended durability. Note: When beginning to drill, slowly introduce the punch needle to the material before applying increased pressure. For harder materials like rock, ice, or agate, the drill bit may experience reduced lifespan. To improve performance, consider adding emulsified oil to the cooling water for better lubrication. Specifications: - Material: Metal, Diamond - Color: Silver - Shank Diameter: 2.3mm / 0.09 inch - Head Diameter: 2.0mm / 0.08 inch - Sanding Length: 6–8mm - Total Length: Approximately 43mm / 1.69 inch - Dimensions: 2.3 x 43mm (Dia x L) - Weight: 26g Package Includes: 20 x Diamond Coated Hole Saw Drill Bits Note: Due to differences in monitor models and display settings, actual product color may vary slightly from images. Product dimensions are manually measured and may have a tolerance of 1–2cm.