Jintian Two-Groove Two-Slot Electric Hammer Drill Bit High Hardness Concrete Rebar Drilling 6*160mm Cross Four-Blade Round Shank

High-quality concrete drill bits with fast drilling capability

Resistant to tooth loss, jamming, and breakage

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

Drill bit thickness up to 2mm for enhanced durability (market average 1mm)

Drill body made from national standard 40CR steel with high-frequency quenching for impact toughness and resistance to breakage

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

Non-slip, wear-resistant, and compatible with various hammer drills