High hardness alloy drill bits made from imported YG8C raw alloy material for superior wear resistance and durability.
Drill body made of national standard 40CR steel with high-frequency quenching for excellent impact toughness, wear resistance, and anti-breakage.
Copper welding at drill head and body junction using high melting point pure copper (melting point 1200°C) to prevent tooth loss and ensure durability, superior to common brass welding.
Surface treated with sandblasting technology to enhance coating adhesion, improve wear and corrosion resistance, and prevent rust.
Additional details
Standard shank types
square shank (four-groove) and round shank (two-groove two-slot) for stable clamping and wide compatibility with various electric hammer drills.
Suitable for drilling marble, granite, concrete, brick walls; not recommended for reinforced concrete or walls with steel bars.
Product appearance may vary; two styles shipped randomly.
Drill bits are designed for continuous drilling up to 200 holes depending on operation and material.
Not suitable for use with three-jaw drills.
Authenticity guaranteed with anti-counterfeit code; verify on official DELIXI ELECTRIC website.
Compatible with imported round shank and domestic light electric hammer drills (round shank), and domestic four-groove square shank electric hammer drills (square shank).
Efficient drilling in concrete, granite, marble, brick walls.
Not recommended for reinforced concrete or steel-reinforced walls.
DELIXI ELECTRIC is a top 500 private enterprise in China, ensuring product quality and reliability.
High-quality materials and advanced manufacturing processes provide long-lasting, wear-resistant, and corrosion-resistant drill bits for professional use.
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