Do deep hole drills need to have coatings?

When many companies engage in deep hole drilling, their first reaction is often to choose high-end drill bits with coatings in order to improve their lifespan and efficiency. But in fact, not all deep hole drills must be coated. For certain low hardness metal materials such as aluminum alloy, ordinary carbon steel, stainless steel, etc., AMG D16 uncoated deep hole drilling is actually a more economical and practical choice.

AMG engineers stated that when processing these materials, the cutting temperature of the tool is relatively low, and the friction control advantage brought by the coating is not significant. On the contrary, the uncoated design combined with optimized internal cooling chip removal channel structure can discharge chips more quickly, effectively preventing problems such as chip sticking and hole blockage. For batch low to medium difficulty deep hole tasks, uncoated D16 drill bits not only maintain excellent surface smoothness and aperture accuracy, but also significantly reduce single piece costs.

In addition, the D16 series can provide various combinations of tool diameters and depths, suitable for CNC equipment and automation systems, especially for the standardized processing needs of industries such as automobiles, molds, and new energy.

Not all deep hole machining requires high-end equipment and reasonable selection to achieve twice the result with half the effort. For companies pursuing cost-effectiveness, the AMG D16 uncoated deep hole drill is undoubtedly a reliable and practical choice.