Large Bonsai Root Cutters by Roshi Tools 10.6" (269 mm)
Roshi high carbon steel bonsai tools are famous for precision cutting, durability and excellent prices.
Root cutters are designed for removing tough old roots and are especially good for removing hard to get at roots immediately below the base of the trunk.
Though not usually a beginner's tool, most bonsai enthusiasts wouldn't be without one. 10.6"