Easy to use: The hand drill has an adjustable design, easy to equip with a 0.3mm-3mm drill; The drill can be combined with different size drills; Just align the threads and turn your headvice for clamping; Operation is simple and convenient Sufficient Vise Set: You will get 1 piece of hand drill and 20 pieces of mini twist drills of different sizes in this package, 21 pieces in total, enough quantity and a variety of sizes to meet your different needsNeeds in daily life Sturdy Material: The pin vise hand drill is mainly made of alloy, which is durable and not easy to rust. The mini twist drill bits are made of high-speed steel, durable and not easy to mix when usingsatisfying life Drill Set: Twist drill bits range in size from 0.3mm to 1.6mm, including 1.0mm, 1.5mm and 2.0mm. 2.5mm and 3.0mm, come with a plastic box for your storage, you can put them in different inner boxes according to the differencesizes, no need to worry Wide range of uses: very suitable for drilling small holes of various things, such as resin, plastic, wood, clay, beads, crafts, artificial beads, jewelry, making models, etcPractices in daily life