precise and stability with our 300mm hexagonal shank extension rod drill bit, designed for deeping hole operations with a secure locking mechanism to slippage Upgrading your toolkit with this extension rod, a must have for anyone looking to achieve precise and efficient drilling in challenging environments Ideal for professional carpenters, renovation specialists, and DIYer enthusiasts, this tool enhances work efficiency and ease of operations Constructed from carbon steel, this drill bit features strong absorption for quick bit changes and enhances durability, ensuring long lasting Perfectly suited for furniture assembly, construction projects, and home repairs, especially in scenarios requiring deeping hole drilling, Manufacturer: BULAIDAI