Best Answer: So used to something it doesn't impress you anymore. Unimpressed, unfazed. A person who is blasÃ© about something would respond Meh.
While cobalt is harder than titanium, and therefore more scratch resistant, tungsten is still the hardest metal currently on the market. In simple terms, although cobalt and tungsten are both extremely hard metals, a tungsten ring will have a higher resistance to scratching. MONARCH-Tungsten Diamond Ring.
Titanium drill bits have a higher hardness level typically than cobalt drill bits. However, the titanium is a coating on the drill bit, so you wonât be able to sharpen the drill bit and keep the titanium coating. Both titanium bits and cobalt bits are more expensive than traditional HSS drill bits.