Generally drill bits that are designed for cutting through steel can also be used to cut holes in wood. However, there are specialty drill bits that are designed for unique drilling needs.
- Point Angle – its tip angle or the sharpness of its point is larger for boring into harder materials such as steel and sharper for boring into softer materials such as wood.
- Twist Bits – have fluted, spiraled channels to remove waste material from the bore. Wood drill bits sometimes have deeper flutes that remove this material more efficiently than a steel drill bit would.
- Auger bits and spade bits – these are two common specialty wood drill bits designed for particular purposes in wood boring. Auger bits have deep flutes for easy chip removal and are made to quickly drill large, deep holes. Spade bits have a very razor-sharp point and a wide blade designed to drill large holes.
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