Feature:1. The straight shank design is more suitable for a variety of electric drills and drilling rigs.2. The drill bit is made of high‑speed steel, strong and durable, has a long service life.3. When the left-handed drill is drilling, the chips are discharged downwards, and the processed holes will not be scratched.4. There are 3.2mm, 4.8mm, 6.4mm, 8.0mm, 8.7mm drill bits of various specifications for you to use.5. Convenient to use and with good performance, with small size, easy to carry and store.Specification:Item Type: Drill Bit Material: High speed steelSpecifications: Approx. 3.2mm / 0.1in4.8mm / 0.2in6.4mm / 0.3in8.0mm / 0.31in8.7mm / 0.34inPackage List:5 x Twist Drill Bit