【Material】 The pin vise hand drill is mainly made of alloy which is durable and not easy to get rust, the mini twist drills are made of high speed steel, durable and not easy to be broken while using 【Sufficient pin vise set】 You will receive 1 piece of hand drill and 25 pieces mini twist drill bits with different sizes, enough quantity and a variety of sizes to meet your different needs in daily life 【Twist Drill bits Size】0.5 mm x 5, 0.6 mm x 5, 1.0 mm x 3, 1.2 mm x 2, 1.5 mm x 2, 1.8 mm x 2 2.0 mm x 2, 2.3 mm x 2, 3.0mm x 2, All 25pcs. 【Easy to use】 The hand drill is in adjustable design and is easy to be equipped with drills which is from 0.5 mm to 3 mm, you just need to clip them tightly and firmly by rotating the vise head, easy and convenient to operate 【Multipurpose】 Suitable for drilling small holes of various things, such as resin, plastic, wood, clay, bead, crafts, artificial pearls, jewelries, model making and so on, Manufacturer: Saipor