1. [Spiral Drill Set] The mini hand drill set includes 1 pc. aluminum hand drill and 25 pcs. twist drills 0.5/0.6/1.0/1.2/1.5/1.8/2.0/2.35/3.0 mm. 2. [Portable and Easy to Store] The selected size design of the mini cordless drill makes it easy to carry and store. 20 pcs. twist drills meet your various needs. There is also a storage box that is easy to distinguish the size, with a velvet bag, which protects the hand drill well and is easy to carry. 3. [Durable high-speed steel hand drill] The mini hand drill is made of high-speed steel hand drill, which is equivalent to an impact drill. Ready for hobby or precision work. 4. [Wide range of applications] The mini hand drill in the set is especially suitable for drilling and drilling holes in wood, resin, jewelry, walnuts, amber, beeswax, olive oil, pearls, PVC, acrylic, etc. plastic materials. 5. [Durable and sturdy] Hand drill, electric drill, made of alloy to be rust-resistant, durable and long-lasting.