CUTTING BIT

PROBLEM TO BE SOLVED: To provide a cutting bit capable of simultaneously smoothing the bottom of a hole when the hole is bored in the road surface and reducing labor and time for working. SOLUTION: A boring bit 3 consisting of a plurality of bits 3a is provided at the front end of a cylindrical bit main body 2. A smoothing bit 4 consisting of a bit 4a is provided to the lower surface side of a flange section 5 provided over the circumferential direction to the circumferential side in the vicinity of the front end of the bit main body 2. A hole is bored in the road surface R by means of the boring bit 3 and, at the same time, a smoothing work is applied by the smoothing bit 4.