This indispensable chisel removes irregularities from crown preparations on the facial and lingual axial walls and the entire occlusal or incisal surface. The other less well-known use is during scaling and root planing – the instrument may be slipped easily under the gingiva to remove stubborn calculus from accessible areas. Featured here is the original G.V. Black 11-15-3 formula (11.0 mm long blade, 1.5 mm wide, and angled slightly 3º/100º on each end with the cutting edge sharpened to either push or pull depending on the situation. We only carry the ergonomic lightweight #6 handles in our fine instruments, and the Wedelstaedt is no different. Originally invented by Dr. Harry Wedelstaedt over 100 years ago, this timeless workhorse will improve your results after using it the very first time!