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AYCDHDBOSolid Carbide Through-Coolant Drill DBOSold0pcsSolid Carbide Through-Coolant Drill DBO, the extended version of the MG0.6 through-coolant drill, pairing 5xD drilling depth with internal coolant for smooth deep-hole chip evacuation. Diameter 3~20mm, overall length 66~153mm, 5~9xD, available in 107 sizes. G10 coating boosts wear resistance and tool life. Handles carbon steel, alloy steel and cast iron up to HRC52. Taiwanese brand, consistent quality.
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$ 1,895 ~ $ 13,684
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Cutting ToolsDrill bitEnd Mill Shank Drill
Solid Carbide Through-Coolant Drill DBO
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Through-Coolant Drill
5xD Drilling Depth

【Product Name】The DBO Series 5D Internal Cooling Drill (Product Code: AYCDHDBO) is an ultra-precision tool designed for medium-deep hole applications (up to 5 times the diameter), primarily addressing chip blockage and cooling inefficiency in high-ratio drilling.

【Key Features & Benefits】

  • 5D Deep Reach with Internal Cooling: The Coolant-Through system flushes chips out of deep cavities under pressure, preventing chip packing. This is a critical recommendation for maintaining process reliability in 5D length operations.

  • Self-Centering Point Geometry: The 140-degree point angle ensures exceptional positioning accuracy, minimizing tool deflection—a practical necessity for maintaining straightness in long-ratio drilling.

  • Wear-Resistant Build Specs: Built with MG 0.6 micro-grain carbide and G10 coating, supporting performance up to HRC52. It is highly effective for ISO K (Cast Iron) by resisting abrasive powdery chips.

  • Stable Precision Choice: Since internal cooling significantly reduces thermal expansion, it is recommended for mass production of holes requiring strict diameter tolerances and long-term stability.

【Applications & Usage】

  • Primary Applications: Ideal for 5D deep-hole drilling, oil passages, and high-stability automated manufacturing.

  • Recommended Materials:

    • ISO P (Steel): Optimized for general carbon and alloy steels under HRC30.

    • ISO K (Cast Iron): Reliable performance for abrasive materials producing powdery debris.