Koyo Professional Grade High Carbon Steel Large Bonsai Root Cutter 10.5"
There are two good reasons why you might want to use one set of tools for root pruning and another for top pruning. First, to protect your top pruning tools from harsh soil particles and second, because roots are often more fibrous and tougher than branches. Which is where root cutters come in. Designed and built strong enough for even the toughest old roots, they are essential if you plan on transplanting larger older bonsai. 10.5"
Made in Japan by Koyo, a quality tool maker