Bamboo Leaf Knife with leather grip Posted on March 7, 2019May 17, 2019 by j aniano The Bamboo Leaf Knife is a traditional Japanese woodworking tool that has become popular among some bow makers. I believe it was originally used for bow making by Mitsu Sasano. The tool has two bevels on either side of the blade and cuts in both directions. This example is made from a high carbon file blank with leather grip. The double bevel side is shown here. The Bamboo Leaf Knife is a traditional Japanese woodworking tool. The flat, reverse side is shown.