SUWADA Bonsai Knob Cutter
SUWADA's original knob cutter is designed to refine the area left after a branch is removed. Its rounded cutting head creates a controlled concave gouge rather than leaving a protruding surface.
This shape gives bark a less raised surface to grow over as the tree develops. Use a knob cutter for refining branch-removal cuts rather than as the primary tool for taking off a whole branch at the trunk.
Not sure when to use this instead of a branch cutter? Read Bonsai Branch Cutter vs Knob Cutter.
Information
- Material: High Carbon Steel
- Made in Japan
Size
- 21 cm
In the box
- One SUWADA Knob Cutter
Garden tool profile
At a glance
ToolKnob Cutter
Best forRemoving & refining knobs
Tool formRounded concave cutter
Key specificationOriginal SUWADA concave cutting head
MaterialHigh-carbon steel
Length21 cm
Why choose it
Refines branch-removal areas with a controlled concave cut
Ownership & care
Made in Japan
Clean and dry after use; apply a light protective oil before storage.
Useful guides
Japanese Bonsai Tools Explained: What Each Tool Does
Compare bonsai tools
| Product |
This product
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| Name | Knob Cutter | Branch Cutter | Root Cutter | Trunk Splitter |
| Price | €79 |
from €75 |
€77 |
€89 |
| Availability | Currently unavailable | Currently unavailable | In stock now | In stock now |
| Purchase |
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| Best for | Removing & refining knobs | Removing branches at the trunk | Thick roots, trunks & branches | Splitting & bending thick trunks and branches |
| Tool form | Rounded concave cutter | Concave branch-cutting jaws | Plier-style root cutter | Blade-less splitting jaws |
| Key specification | Original SUWADA concave cutting head | Controlled gouge at the branch base | Strong compact head for work around the root mass | Separates wood fibres for controlled shaping |
| Material | High-carbon steel | High-carbon steel | High-carbon steel | High-carbon steel |
| Length | 21 cm | 18 / 20.5 cm | 21 cm | 21 cm |
| Why choose it | Refines branch-removal areas with a controlled concave cut | Designed to reduce the raised knob left by a flat branch cut | Cuts thick roots that ordinary scissors cannot handle | Specialist structural shaping and deadwood tool |
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Comparison uses verified product specifications. First-party performance results are added only after SUWADA testing.
Questions about this tool
What is the difference between a bonsai branch cutter and a knob cutter?
A branch cutter is designed to remove a branch close to the trunk while leaving a controlled concave cut. A knob cutter is used to remove or refine raised wood and create a deeper rounded concavity where more material needs to be taken away.
