Coolant-fed Twist Drill
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15D Solid Carbide Coolant Through Drill for Deep Hole Machining of Hard Metals
OPTGD Coolant Through Drill with internal coolant channels, solid carbide, extended tool life, high precision & fast chip evacuation. For CNC, aerospace, automotive, mold & die. Custom coating available.
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3D Tungsten Steel Internal Cooling Drill Bit – High Performance CNC Drilling Tool
Our tungsten steel internal cooling drill bits are precision-engineered from premium solid carbide, delivering exceptional hardness, wear resistance, and stability for heavy‑duty drilling applications. Designed for CNC and automated machining centers, these drills combine advanced internal coolant channels, optimized geometries, and high‑performance coatings to maximize efficiency and tool life.
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8D Coolant Through Solid Carbide Drill High Precision Long Life Drill Bit for CNC Metalworking
Coolant Through Carbide Drill is built with ultra-fine grain carbide (K10/K20/K30) and optimized 118°/135° point geometry, equipped with 2-4 internal coolant channels for direct lubrication at the cutting edge. With optional TiN/TiCN/AlTiN coating, it delivers high precision, extended tool life, superior chip evacuation, and stable performance in high-speed CNC drilling for steel, stainless steel, cast iron, superalloy, aluminum alloy, and other materials. The diameter ranges from φ3mm to φ20mm, fully meeting the needs of small-batch customization and mass production.
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Internal Coolant Carbide Drill 5D Solid Carbide Through Coolant Drill Bit for CNC Stainless Steel Cast Iron
Internal Coolant Carbide Drill. Our solid carbide internal coolant drill is engineered for high-efficiency CNC machining. Built with ultra-fine grain carbide substrate, optimized point geometry & through-coolant channels, it delivers exceptional hardness, heat resistance, chip evacuation & tool life for steel, stainless steel, cast iron, alloy & hardened materials.