People Electric Hammer Drill Bit Square Shank Four-Groove Wall Penetration Cement Concrete Wall Opening Construction Impact Drill Bit 6*200

Fast drilling with high efficiency; capable of penetrating concrete in seconds

Durable and resistant to breakage and tooth loss; does not jam during drilling

Made with high hardness YG8C alloy raw material for superior wear resistance and longevity compared to recycled alloys

Drill body constructed from national standard 40CR steel with high-frequency quenching for excellent impact toughness and durability

Thickened drill head (2mm thickness) for enhanced wear resistance and longer service life compared to common 1mm thick drill bits

Copper welding at drill head and body junction using high melting point pure copper (melting point 1200℃) to prevent tooth loss and melting under high temperature, superior to common brass welding

Surface treated with sandblasting technology to improve coating adhesion, enhance wear and corrosion resistance, and prevent rusting