Titanium is a very hard and lightweight metal used in armour plating of tanks, in aircraft engines and in many applications where resistance to seawater is essential. The metal does not react with substances within the human body making it ideal for artificial joints. It's also used in cookware and eyeglass frames, among others. It is difficult to work with and expensive machinery is needed for mass-producing titanium parts. Because titanium is a very hard substance and has a high melting point, it is an ideal material for the cutting surface of a drill bit.
Titanium drill bits are not made of solid titanium because they would be extremely expensive and very difficult to manufacture. They are plated with a titanium nitride exterior over a steel core. The bits tend to have a thicker stem than steel-only bits, making them less prone to breaking.
Using Titanium Bits
Titanium bits offer more-efficient cutting action that allows shorter work time while also being able to use a less-powerful drill. Titanium-coated bits also last about three times longer than conventional ones.
Titanium drill bits make short work of cutting into metals such as steel, copper, aluminium or brass because titanium is harder than any of these materials.
Titanium-coated drill bits are used in woodworking and are ideal for boring through knotty wood which might bind or break a conventional bit. A typical steel bit is fine for soft wood but dulls quickly if used on hardwoods.
The bits are ideal for plastic, PVC, or nylon pieces, but most notably show their superiority over conventional steel bits when drilling into metal.
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