Question

__________ are designed for drilling into brick, block, stone or concrete.

(a) Wood auger bits

(b) Masonry bits

(c) Bullet pilot bits

(d) Spur point bits

Answer 1

The correct option is (b) Masonry bits

For explanation: The cutting tip of masonry bit is often made from tungsten carbide bonded to a spiralled Steel shaft. Some masonry drills are described as Durium Tipped, means a highly durable Silicon Bronze alloy used instead of tungsten as the cutting point.