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4-Flute Drill Bit
Ultra-high hardness
Quick Deep Drilling
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Tired of Dealing
with Fragile Drill Bits?
with Fragile Drill Bits?
Slow Drilling
Wears out Fast Only for Thin Materials
Clogs with Chips
Glass shattering
Power Through Any Material
High-strength
4-edge serration
4-edge serration
Marble
Brick
Steel pipe
Concrete
Ceramic tile
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HRC62 Alloy Steel Material
High hardness
High wear resistance
Quick Deep Drilling
Smoother, More Precise
Our screwdriver bits have a high hardness of up to
62HRC
Regular market screwdriver bits
Offset Eccentric Flutes
4-Flute Design
Serrated Edges
Not easy to rust corrosion-resistant
1 week Later
Before the experiment
After the experiment
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5day
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6day
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From Home to Factory
One Kit Fits All
Household use
Construction site
Carpentry project
Universal Hex Shank
Electric hand drill
Lithium battery
Electric screwdriver
Screwdriver
Shank Diameter
Drill Depth
Bit Diameter
Total length
Size
（mm）WT
（g）Length
（mm）Working Length
（mm）
100% Refund Policy
We offer a 100% money back guarantee within 14 days of receiving a
product. Try it out, if you are not satisfied, we will refund your
purchase
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$19.99
$39.99
50% off
Specification
4 PCS Kit [6mm+8mm+10mm+12mm]
🔥6 PCS Kit [4mm+5mm+6mm+8mm+10mm+12mm]
6mm
8mm
10mm
12mm
Set of 5: 6mm
Set of 5: 8mm
Set of 5: 10mm
Set of 5: 12mm
Quantity
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More users choose to buy two pieces
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