High Hardness Deep Hole Solid Carbide Twist Drill Bit 16mm With Internal Coolant

The Solid HM Internal Coolant Twist Drill D16×L160×D16×L220 is a high-performance carbide drilling tool developed by AMG, specifically designed for deep hole machining under conditions requiring high depth, precision, and efficiency. Manufactured using ultra-fine grain solid hard metal (HM), this drill offers excellent wear resistance, thermal stability, and fracture toughness. Its optimized spiral flute geometry combined with dual internal coolant channels significantly enhances chip evacuation, reduces cutting temperature, and improves hole positioning accuracy. It is ideally suited for aerospace, mold making, energy equipment, and heavy machinery industries where hole quality is critical.

This drill is suitable for deep hole machining in materials such as steel, stainless steel, titanium alloys, and alloy steels. It is widely used for aerospace structural components, engine housings, heavy industrial parts, mold cooling channels, and hydraulic system ports—especially where high hole straightness and concentricity are required.

This twist drill features a stable spiral flute design that effectively guides chips out of the cutting zone, preventing clogging. The dual internal coolant system delivers high-pressure coolant directly to the cutting edge, improving cooling efficiency and reducing heat-induced wear. The drill's high-rigidity structure ensures excellent hole precision and straightness even under long aspect ratio and high-load drilling conditions.

• Specialized for Deep Hole Drilling: Supports 10×D and longer drilling, ideal for heavy-duty structural components in the energy sector.
• High-Rigidity Structure: Solid construction ensures stable hole alignment and precise guidance under high loads.
• Efficient Internal Coolant System: Direct coolant delivery to the cutting zone reduces heat buildup and extends tool life.
• Optimized for High-Strength Materials: Ideal for alloy steels, stainless steels, and heat-resistant materials.
• Customizable by AMG: Non-standard specifications available to meet the needs of large, complex components.