Lord of Lava Island 🌋🤷🌋
Was watching a training video, extracted this information. Might be helpful to someone.
Cobalt drill bits can run 10% sfm over hss
Tungsten carbide drill bits can run 2-3x, very brittle, must use spotting bits, not center drill as they will most likely chip
TiN (titanium nitride, dark gold color) typically allows about a 25% increase in cutting speed, until worn off or sharpened away
TiCN (titanium carbo nitride, violet grey color) 35-50% higher speeds and 15-25% higher feeds
TiAlN (titanium aluminum nitride, violet black color) 75-100% higher speeds, not for aluminum! they stick
ZrN (zirconium nitride, very bright yellow color) 25-30% faster speeds, increases tool life 3-5x, great for aluminum as they tend to NOT stick together
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