Features 【Pin Vise Hand Drill】: made of aluminum alloy, this pin vise hand drill is durable and firm, its tail can be rotated, sturdy and convenient for you to operate. 【High Precision】： With sharp cutting edge, milling groove and clean surface, these sets of tool work quickly and cleanly, no glitches or scrap left.Easily rotate vise head to clamp the drill bit in 0.3 - 1.6mm. Precise designed chuck to keep that drill upright. 【Convenient And Easy Storage】：These Mini Drill Bits come packaged in a convenient clear dome shaped storage case, with a protective pressure fit stand to secure drills and prevent any damaged or lost bits. 【Slip Resistant Comfortable Grip 】： Its ergonomic soft shaft cover ensures extended crafting sessions without discomfort. It's not just a tool; it's a crafting companion meticulously designed with an understanding of your needs and passion. 【Application】：Precision CNC machining, accurate and efficient.Great for precision crafts, jewelry, watch repair, model making, hobby work, etc. Specification: Material: High Speed Steel Drill Bit Size: 0.3mm, 0.35mm ,0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm Package list: 20 * Mini Drill Bit Package List