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examples of bits and drills [2]click to hear

While both are intended for drilling holes in various materials, the bit has a center point while the drill ends in a cutting-edge cone.
examples of bits and drills [2] spade bit twist drill masonry drill double-twist auger bit

spade bit click to hear

Bit designed for shallow holes of wide diameter; it has a long lead screw for positioning on the center of the hole.

twist drill click to hear

Usually used to drill holes in metal or wood, it is the most common type of drill.

masonry drill click to hear

The carbide and tungsten tip, hard and durable, is designed to drill through material such as brick, concrete and stone.

double-twist auger bit click to hear

Bit made up of two opposing twists; it removes debris quickly as the hole is drilled.