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krm***
Model Number:C31HD C21HD;Compatible Brand:ZOOMLION;
$122.16
10 days ago
nct***
Model Number:C31HD C21HD;Compatible Brand:ZOOMLION;
$142.52
48 days ago
qii***
Model Number:C31HD C21HD;Compatible Brand:Sany;
$160.32
40 days ago
htr***
Model Number:C31HD C21HD;Compatible Brand:Sany;
$30.06
38 days ago
vad***
Model Number:C31HD C21HD;Compatible Brand:Atlas Copco;
$105.84
14 days ago
esa***
Model Number:C31HD C21HD;Compatible Brand:Atlas Copco;
$105.84
49 days ago
ohl***
Model Number:C31HD C21HD;Compatible Brand:CNH;
$155.89
46 days ago
xnb***
Model Number:C31HD C21HD;Compatible Brand:CNH;
$64.19
20 hours ago
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Customer Reviews

Foundation Bored Pile Drilling Rotary Rig Rock Drilling Auger Bits C31HD C21HD
$6$7.56-20.63%
Model Number:
C31HD C21HD
Compatible Brand:
Atlas Copco
Sany
ZOOMLION
CNH
Quantity:
Add to Cart
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Features
Powerful & Durable Foundation Bored Pile Drilling Bits
High-performance rotary drilling bits designed for tough rock and soil conditions. Precision-engineered with ultra-hard alloy teeth (C31HD & C21HD models) for maximum wear resistance and extended service life. Seamless heat-treated steel body ensures superior strength under heavy loads.
Optimized for Efficiency & Precision
Special spiral flute design minimizes friction and accelerates debris removal, boosting drilling speed. Compatible with most rotary rigs, ideal for deep foundation piling, bridge construction, and geotechnical engineering.
Bulk Purchase Advantage
Direct factory pricing with wholesale discounts for large orders. Global shipping, guaranteed lowest rates. Trusted by contractors worldwide for reliability in demanding projects.
Built for Professionals
Rugged construction resists bending and cracking. Corrosion-resistant coating for longevity in wet or abrasive environments. Ready to tackle reinforced concrete, hard rock, and compacted layers effortlessly. Upgrade your equipment with industry-leading bits—engineered to drill deeper, faster, and smarter.
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