Section 874.4250 - Ear, nose, and throat electric or pneumatic surgical drill(a)Identification. An ear, nose, and throat electric or pneumatic surgical drill is a rotating drilling device, including the handpiece, that is intended to drive various accessories, such as an ear, nose, and throat bur (§ 874.4140 ), for the controlled incision or removal of bone in the ear, nose, and throat area.(b)Classification. Class II.