Abstract: A deburring tool including an elongated arbor formed with a cutting blade recess. A unitary cutting tool has a cutting head with an elongated, flat, resilient blade extending therefrom. The blade is received in the recess, and mounting means secures the end of the blade opposite the cutting head to the arbor in non-pivotal relationship with respect to the arbor with the cutting head projecting from the recess, a portion of the blade extending from the mounting means being yieldable to permit the cutting head to move resiliently inwardly with respect to the recess.