• Professional set of 8 wood drill bits, includes sizes 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, and 25 mm • Made of hardened carbon steel, offering high durability and resistance • Four-blade design allows for self-feeding, fast drilling, and efficient chip removal • Self-tapping thread for precise positioning and clean drilling • Hexagonal shank for greater stability and safety during use • Compatible with manual, cordless, and bench drills • Suitable for working with softwood, hardwood (up to 16 mm), plastic, rubber, polyurethane, MDF, and plywood • Not suitable for drilling metal • For drill bits of 18 mm or larger, it is recommended to use handheld or bench electric drills with power above 800 W • Maintain appropriate drilling speed according to the drill bit diameter • In case of abnormal chip removal, stop and clean before continuing • Use cutting oil to cool during prolonged drilling • Clean and apply anti-rust oil after use to prolong service life • Keep out of reach of children due to sharp tip • Total package weight: 0.94 kg • Package size: 24.9 x 20.8 x 5 cm