Ideal for removing soil at the edge of a rootball. A pot saw is a specialty tool used for repotting bonsai. From time to time you need to repot your bonsai and when you try to remove from the pot and it does not want to come out. This is because of a couple things. Either your pot has and inside lip preventing the removal of the tree, roots and the soil or the roots have grown into a coil around the inside wall of the pot. So what do you do. You use a pot saw. This saw is curved and the teeth of the saw are pointed backward. So you cut on the pull stroke. You insert the blade into and along the inside wall of the pot and start sawing and pulling toward you. The saw will cut up the roots as you go around the inside perimeter of the pot. Now the tree comes out easily. Once out, you of course root pick the roots out sort of like combing hair and you will be amazed how long the roots have grown. You would then trim the excess root material, remove much of the soil around the base of the tree and repot by repacking new soil into the pot.
This saw has also been purchased as a tool for cutting the roots of bamboo. It does a slick job of it. Bamboo roots are tough. The blade on this saw is thicker carbon steel and the teeth are very strong and sharp. The blade is double riveted into the handle and will last for years. This is just one of those tools that when you need it, you will wish that you owned it in your tool kit. Made in Japan.