To provide a drill cover capable of preventing chips from being entangled around a drill by preventing lowering of the air pressure in a dust collecting cover to improve dust collecting efficiency.

This drill cover is a hollow drill cover 2 provided to cover the drill 1. The cover body 2a is provided with a connecting hole 2b to which a suction duct 3 is connected, and a first tip surface 4 intersecting the side 2d of the cover body 2a and a second tip surface 5 projected from the first tip surface 4 are formed at the tip part 2c of the cover body 2a. A suction hole 6 communicated with the inside of the cover body 2a is formed in the first tip surface 4, and a drill projecting and sinking hole 7 for projecting and sinking the drill 1 to the cover body 2a is formed in the second tip surface 5.