I am writing to share some observations I’ve made regarding the performance and durability of various drill bits, particularly in comparison between those manufactured in the USA and those sourced from overseas. My perspective comes from 27 years of experience as a machinist.
I’ve found that, generally speaking, the majority of screws and bolts encountered are no match for drill bits crafted from High-Speed Steel (HSS) manufactured here in the USA. In contrast, I’ve experimented with some of the less expensive, imported drill bit sets – a recent example being a titanium-coated set purchased for around $20 from Harbor Freight. While the titanium coating initially suggested a degree of resilience, my experience over the past couple of years has been quite different.
These imported bits have proven to be prone to premature dulling and breakage. On more than one occasion, I've struggled to drill out a stubborn screw or bolt using these bits, only to then successfully complete the job with a USA-made HSS bit. The difference in performance was significant and undeniable.
This experience reinforces my understanding of the quality and consistency found in American-made tooling. While the initial price point of imported sets may be attractive, the long-term value and reliability pale in comparison to the more robust American alternatives.
Of course, in my professional experience, when dealing with particularly hardened or difficult materials, we often turned to solid carbide drill bits. These are undoubtedly a more costly option, but their effectiveness in such situations is unmatched. However, it is equally important to acknowledge that carbide bits are brittle and shatter easily if not used with proper care and at controlled speeds.
My intention in sharing these observations is to provide valuable feedback based on real-world use. I hope this information is helpful.
Last edited by Phak1; 06/02/2025 1:03 PM. Reason: Additional info
