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How do I choose the right button shape for my rock drill bit?
The shape of the tungsten carbide buttons on the bit face is a crucial design choice that directly affects drilling speed and bit life.
Hemispherical (Round) Buttons:
Best for: Hard, abrasive, and massive rock formations (like granite or hard iron ore).
Why: The rounded shape is the strongest and most resistant to breakage. It drills by crushing the rock, which is the most efficient way to break very hard material. While it might drill slightly slower than sharper shapes, its durability is key in extreme conditions.
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