





drill bit 1*
Suitable for drilling reinforced concrete, rock, cement walls, and brick walls
Four-blade design capable of drilling through steel reinforcement bars
High-temperature quenching treatment for enhanced hardness and durability
Double spiral grooves for fast chip removal and wear resistance
Upgraded four-blade design offers better cutting performance and longer service life compared to traditional two-blade drill bits
Standard shank design available in square shank (four-groove) and round shank (two-groove, two-slot) types
Compatible with square shank four-groove electric hammer drills and round shank two-groove impact drills

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
1. Ensure the drill is fixed firmly at a 90-degree angle to the drilling surface to prevent movement.
2. When the positioning drill bit penetrates, pause briefly before continuing to drill.
3. Stop operation if abnormal conditions or poor debris removal occur; clear debris before resuming.
4. Use water or coolant during drilling to extend drill bit life.
5. Drill bits are consumable items and are not covered by warranty.
Drilling holes in concrete, cement pillars, walls, brick walls, granite, and other hard, brittle materials.
Four tungsten steel alloy blades for effective drilling of steel bars and various cement walls
Penetration-type chip removal for quick debris evacuation and enhanced durability
Upgraded drill bit design with four cutting edges for improved sharpness and wear resistance
Robust construction with standard shank designs for secure fitting and reliable performance
Available in both square shank (four-groove) and round shank (two-groove, two-slot) configurations suitable for different electric hammer drills and impact drills.
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10*160mm round handle, ten pieces
CNÂ¥83.70