This hand tool kit is designed for heavy-duty applications, featuring a robust 26mm 12-26 Rotary Hammer Knob Suitable For All Imported 2-26 Model that can withstand intense wear and tear. The copper coil ensures efficient heat dissipation, prolonging the tool’s lifespan. With its ergonomic design and powerful motor, this hammer drill effortlessly tackles demanding tasks like drilling through concrete or masonry. Experience unparalleled performance and durability with this professional-grade tool, perfect for construction sites or home renovation projects. Unleash your full potential and accomplish tasks with precision and efficiency.