The object of the present invention is to provide a drill for producing a deep hole that does not produce bend of the hole during cutting. A drill body 1 is spirally provided with a pair of cutting edges 3. The cutting edges 3 are spaced at about 180 degrees apart around a core 1a of the drill and the edge line 3a of a tip section of the cutting edges 3 is depressed toward a core 1a of the drill. When the outside dimension of the drill is 7.4 mm, an angle between the edge line 3a and a line perpendicular to the core 1a is 5 degrees and the core thickness (t) is 2.96 mm. Further, the drill is provided with a guide section 4 for preventing bending in the case of a cutting operation. The guide section 4 is provided on a heel side on the same circumference as that on which the outer end section of the cutting edges 3, 3 passes.