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Product Specifications
High hardness YG8C alloy drill heads made from imported raw materials for superior wear resistance and durability.
Drill body made of national standard 40CR steel with high-frequency quenching for excellent impact toughness and resistance to breakage.
Purple copper welding at drill head and body junction with higher melting point (1200°C) compared to common brass welding, preventing tooth loss and ensuring durability.
Surface treated with sandblasting technology to enhance coating adhesion, improve wear and corrosion resistance, and prevent rust.
Designed for fast and efficient drilling in concrete, granite, marble, brick walls; not suitable for reinforced concrete or walls with steel bars.

5-Piece Twist Drill Bit Set
CNÂ¥21.78
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Yi Tiao Fen Xin Zuan [6mm], 1 Piece
CNÂ¥11.90
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Tilted eccentric drill bit [10mm] 1 piece
CNÂ¥20.90
Thickened drill head up to 2mm for longer service life compared to common 1mm thickness drill bits.
Anti-slip and wear-resistant shank design for stable clamping and compatibility.
Each drill bit includes a unique anti-counterfeit code for authenticity verification via official website or WeChat public account.
Rapid penetration of concrete and hard materials without jamming or tooth loss.
High wear resistance and corrosion resistance.
Continuous drilling capacity up to approximately 200 holes depending on operation and material.
| Item | Detail |
|---|---|
| Square Shank 6x110mm (Diameter 6mm, Total Length 110mm, Working Depth 45mm) | — |
| Round Shank 8x210mm (Diameter 8mm, Total Length 210mm, Working Depth 145mm) | — |
| Square/Round Shank 25x500mm (Diameter 25mm, Total Length 500mm, Working Depth 430mm) | — |
Full size range available from 6mm to 35mm diameter and 110mm to 500mm length.
Product appearance may vary; two styles shipped randomly.
Actual product dimensions and appearance prevail.
DELIXI ELECTRIC is a top 500 private enterprise in China, ensuring product quality and reliability.
Each drill bit is marked with DELIXI logo and exclusive code for authenticity.
Anti-counterfeit verification available online and via official channels.
Compatible with imported round shank and domestic light electric hammer drills (round shank).
Compatible with domestic square shank electric hammer drills (square shank).
Not recommended for use with three-jaw drills.
Avoid use on reinforced concrete or steel-reinforced walls.
DELIXI ELECTRIC hammer drill bits offer professional-grade performance with high hardness alloy heads, durable steel bodies, and advanced welding and surface treatment technologies. They provide fast, efficient, and reliable drilling for a variety of construction materials, ensuring long service life and user satisfaction.
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10*160mm round handle, ten pieces
CNÂ¥83.70