Feature:1. The accurate screw design is ideal for handling small, fragile or large projects, very practical2. Made of highspeed steel with deep threads, making the drill bit stainless and durable3. Suitable for wood, resin, jewelry, walnut, amber, beeswax, olive fruit, pearl, PVC, model making, DIY and other materials4. Threejaw chuck design is easy to rotate the screw head to fix the drill in the range of 0.33mm5. There are many different specifications to meet all your needs, the size is from 0.3~3mm, very usefulSpecification:Item Type: Hand Twist Drill SetTwist Drill Material: High-speed steelUses: Suitable for wood, resin, jewelry, walnut, amber, beeswax, olive fruit, pearl, PVC, model making, DIY and other materialsTwist Drill Bit Specifications: 2Pcs of Each: Approx. 0.3mm / 0.01in0.4mm / 0.02in0.5mm / 0.02in0.6mm / 0.02in0.7mm / 0.03in0.8mm / 0.03in0.9mm / 0.04in1.0mm / 0.04in1.1mm / 0.04in1.2mm / 0.05in1.3mm / 0.05in1.4mm / 0.06in1.5mm / 0.06in1.6mm / 0.06in1.7mm / 0.07in1.8mm / 0.07in1.9mm / 0.07in2.0mm / 0.08in1Pc of Each: Approx. 2.1mm / 0.08in2.2mm / 0.09in2.3mm / 0.09in2.4mm / 0.09in2.5mm / 0.1in2.6mm / 0.1in2.7mm / 0.11in2.8mm / 0.11in2.9mm / 0.11in3.0mm / 0.12in.Package List:1 x Hand Twist Drill46 x Twist Drill Bits1 x Tweezers