Drill Depth – Auger bits are capable of drilling deep, neat holes in wood up to 600mm (31″). This suits them not only to most woodworking and furniture making applications but also to construction and garden-based woodworking, such as drilling through decking.
Quality of Holes – The sharp spurs on the edges of an auger bit’s tip ensure that the hole is smooth and uniform all the way through.
Ease of Boring – Auger bits with guide screws do not require much downward pressure for them to bite into the workpiece and begin to cut. This is because the thread on the guide screw draws it through the wood, making the operator’s life much easier.
Efficient Evacuation of Shavings – The wide, deep flighting of an auger bit allows for efficient evacuation of wood shavings and prevents the borehole from becoming clogged as easily as it might with other drill bits.
Single-twist auger bits are the most efficient at ejecting waste material and can bore deep holes without having to be withdrawn at any stage.