36/37 Rhodes Back-Action Periodontal Chisel, DE 36/37 Rhodes Back Action Chisel is designed for removing bone adjacent to the tooth without causing trauma and is especially useful on the distal of last molars. It is used is used in a pull stroke. Working ends are 3.8mm wide. Product Details 36/37 Rhodes Back-Action Chisel Working end are 3.8mm in size Used for recovery of the bone material by pull stroke Double ended hand instrument Surgical Stainless Steel Completely Sterilized