KNOB CUTTER - NOVICE GRADE
Don't let the term "Novice Grade" throw you off. These Bonsai Aesthetics tools are solid and priced right for either your first set of tools or a tool you just want to use for rough work, such as collecting or re-potting. These are the tools I first bought and while I eventually upgraded, most of these are still in use for such rough work.
From the Bonsai Aesthetics description: Designed for removing unsightly knobs from trunks and branches, as well as for removing roots. Though not usually a beginner's tool, most bonsai mavens wouldn't be without one. 7" (18cm). Novice grade. Made in China.