Set contains 1 small precision pin vise hand drill with steel keyless chuck and 10 twist drill bits. Drill bit sizes: 0.8, 1.0, 1.2, 1.5, 1.75, 2.0, 2.2, 2.5, 2.75, and 3.0 mm Drill bits come in hard plastic container for organization. Great for use on wood, jewelry, and other soft materials. | Designed for precise drilling, hobbies, jewelry crafting, and electronics. US-BASED CUSTOMER SERVICE: Available by chat, email, phone, or visit us at our customer service center in La Crosse, WI.