#15 - Straighter deep-hole drilling

#15 - Straighter deep-hole drilling
Top articles from 2020: Counter-rotation gundrilling delivers required concentricity for deep hole applications in precision medical devices.
Manufacturers achieve concentricity tolerances when the hole follows the desired axis of the part, eliminating drift from the point of entry to the exit. In a round part with on-center drilling, this is easily illustrated; some applications may include off-center deep holes or holes in non-round parts that still have tight concentricity requirements.
Low concentricity in some applications can weaken sidewalls, lead to mismatched holes, or force producers to scrap parts. Adding a counter-rotating process on deep-hole drilling equipment allows manufacturers to economically achieve critical tolerances.

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