This indispensable chisel is perfect for removing irregularities from crown preparations on both the facial and lingual axial walls and the entire occlusal or incisal surface. 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 light weight #6 handles in all of our fine instruments, and the Wedelstaedt is no different. Originally invented by Dr. Harry Wedelstaedt over 100 years ago, this timeless work horse will improve your results after using it the very first time!