Effective Drilling Design: Features a 100mm large diameter drill bit suitable for various materials including wood,, and soft metals, enhancing drilling effectiveness by 20% with its unique helical structure High Carbon Steel: Constructed from high carbon steel, offering 30% increased hardness compared to standard steel, ensuring sturdiness and extended usage time for professional use Portable Storage Case: Comes with a lightweight and small storage case measuring 15 x 10 x 5 cm, easy to transport and store, suitable for various mobile drilling needs Ergonomic Shaped Handle: Designed with a shaped handle for superior grip and 50% anti-slip capability, reducing fatigue during prolonged use, ideal for home repairs and small projects Wide Ranges of Applications: Perfect for a wide variety of projects from home maintenance to garden drilling, catering to both professional construction requirements and beginner tasks, Manufacturer: Greabuy