12D Coolant Through Carbide Twist Drill for Hardened Steel & Superalloys
Bullet Points
Direct Internal Cooling：Coolant flows straight to the cutting edge to reduce heat buildup, lower friction, prevent workpiece burning, and support higher cutting speeds
Superior Carbide & Coating：High‑strength solid carbide body + customized coating for mild steel / hard steel / stainless steel, boosting wear resistance and service life
Optimized Point & Flute：Self‑centering drill point eliminates center drilling; polished spiral flutes ensure smooth chip removal and minimize clogging
High Precision & Stability：Minimal deflection, tight dimensional tolerance, ideal for deep‑hole drilling and high‑accuracy applications
Wide Compatibility：Works with CNC machines & manual drills; supports automotive, aerospace, oil & gas, and general machinery
Applications
Aerospace：Drilling high‑strength alloys, titanium components for engines and structural parts
Automotive：Precision holes in engine blocks, transmission housings, cylinder heads, and key components
Oil & Gas：Machining valves, drilling equipment, pipeline fittings, and hardened parts
General Machinery：Mold manufacturing, hydraulic parts, metal fabrication, and high‑volume production lines
Hot Q&A
How does internal coolant improve performance?
Coolant reaches the cutting edge directly to reduce heat, extend tool life, improve hole precision, and enable higher cutting parameters
Is it good for deep‑hole drilling?
Yes. Sturdy carbide body + internal coolant minimize deflection and ensure stable, accurate deepholes
What maintenance is recommended?
Regular wear inspection, proper coolant concentration, and clean coolant channels to keep peak performance
Can you customize for special materials?
Yes. Provide workpiece material & hardness for tailored coating and geometry optimization
