🌿 Product Description

The Kaneshin No.10B Thin-Blade Bonsai Knob Cutter – Small is a specialized Japanese bonsai tool designed for removing branches close to their base and cutting away unwanted knobs or protruding wood.

The No.10B is the thin-blade version of the standard Kaneshin No.10 Knob Cutter.

By making the cutting edges thinner, this model provides a more refined blade profile for precise work, making it particularly suitable for Mini and Shohin bonsai, where working space is limited and delicate control is important.

With an overall length of approximately 175mm (6.89 in), it offers a compact size for detailed bonsai work.

Because each tool is individually finished by hand, the cutting-edge dimension may vary slightly from approximately 3–4mm. This natural variation is part of the handmade production process.

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✨ Features

• Kaneshin bonsai knob cutter
• Model No.10B
• Small size
• Thin-blade version of the standard No.10
• Designed to remove branches close to their base
• Suitable for removing knobs and unwanted protruding wood
• Compact 175mm design
• Particularly useful for Mini and Shohin bonsai
• Slimmer cutting edges for precise work
• Individually handmade/finished
• Slight dimensional variation is normal
• Made in Japan

🔧 Specifications

Brand: Kaneshin
Model: No.10B
Product Type: Thin-Blade Bonsai Knob Cutter
Size: Small
Overall Length: Approx. 175mm (6.89 in)
Cutting Edge: Approx. 3–4mm (0.12–0.16 in)
Recommended Bonsai Size: Mini to Shohin Bonsai
Country of Manufacture: Japan

Please Note: Because this tool is made and finished by hand, slight dimensional variations occur. The cutting-edge measurement cannot be made perfectly identical on every individual tool.

⭐ What Is the No.10B?

The easiest way to understand this model is:

Kaneshin No.10 → Standard Knob Cutter

Kaneshin No.10B → Thin-Blade Version of No.10

The basic purpose remains the same, but the No.10B features thinner cutting edges.

This makes it an attractive choice for bonsai enthusiasts who want a more delicate tool profile for detailed work, particularly on smaller trees.

✂️ What Is a Bonsai Knob Cutter?

A bonsai knob cutter is a specialized tool designed to remove unwanted woody material from a tree.

It can be used to cut away:

• Branch bases
• Branch stubs
• Knobs
• Protruding wood
• Unwanted woody growth

Unlike ordinary scissors, a knob cutter is designed to bite into and remove wood from the surface, allowing the user to work on unwanted protrusions and branch bases.

This makes it an important specialized tool for structural bonsai work.

🌳 Removing Branches from the Base

When a branch is removed, leaving a large protruding stub may interfere with the desired trunk profile.

The No.10B can be used to remove woody material close to the branch base, including controlled removal of remaining protruding material.

Its cutter geometry allows the user to work into the wood rather than simply making the flat cross-cut associated with ordinary scissors.

🪵 Designed for Removing Knobs

The Japanese name:

コブ切 – Kobu-kiri

literally refers to a tool for cutting or removing knobs / protruding woody sections.

In bonsai, unwanted raised areas can develop around old branch bases, pruning sites, or other sections of the trunk.

A knob cutter allows these areas to be carefully reduced as part of shaping the tree's structure and surface.

🔪 Why Choose the Thin-Blade No.10B?

The key difference between No.10 and No.10B is the blade profile.

The No.10B uses thinner cutting edges than the standard No.10.

This slimmer profile is especially useful when:

• Working on smaller bonsai
• Accessing confined areas
• Removing small amounts of woody material
• Greater precision is desired
• Working around closely spaced branches

The thin-blade design does not mean the tool should be forced through oversized or excessively hard material.

Its main advantage is precision and access, not maximum cutting power.

🌱 Ideal for Mini & Shohin Bonsai

Kaneshin particularly recommends this size for:

Mini Bonsai → Shohin Bonsai

Smaller trees naturally have less working space between branches and around the trunk.

A large, heavy knob cutter can therefore be unnecessarily cumbersome.

At approximately 175mm / 6.89 in, the No.10B provides a more compact tool for these detailed applications.

📏 Handmade Cutting Edge: Approx. 3–4mm

The cutting-edge dimension is approximately:

3–4mm / 0.12–0.16 in

However, this measurement should be understood as an approximate range rather than an exact specification for every individual tool.

Because these tools are made and finished by hand, slight differences naturally occur from one piece to another.

For this reason, Kaneshin cannot guarantee that every No.10B will have an exactly identical cutting-edge measurement.

This variation does not indicate a defect.

🇯🇵 Japanese Bonsai Tool Craftsmanship

One characteristic of traditional Japanese bonsai tools is that hand-finishing can result in small dimensional differences between individual pieces.

Rather than expecting machine-level dimensional uniformity, buyers should understand that minor variations can be a natural result of the production process.

This is particularly relevant to the No.10B's very small 3–4mm cutting-edge dimension.

🆚 No.10 vs. No.10B

For customers deciding between these two Kaneshin models:

The most important point is simple:

👉 No.10B is the thinner-bladed version of No.10.

🆚 Knob Cutter vs. Concave Branch Cutter

These two bonsai tools are related but serve somewhat different purposes.

A Concave Branch Cutter is primarily designed to remove branches at their base while creating a controlled recessed cut.

A Knob Cutter is particularly useful for scooping away or reducing protruding woody material, including knobs and remaining branch bases.

For more advanced bonsai work, many enthusiasts use both tools because each cutting-head geometry is suited to different stages of branch and trunk work.

🌳 Recommended Use

The Kaneshin No.10B is particularly suitable for Mini bonsai, Shohin bonsai, branch-base removal, reducing small woody protrusions, removing knobs, refining pruning areas, and detailed structural bonsai work.

Its thin cutting profile makes it especially attractive when access and precision are more important than maximum cutting capacity.

⚠️ Important Use Instructions

The manufacturer does not provide a specific maximum branch diameter for this model, so we do not advertise an unsupported cutting capacity.

Avoid forcing the thin cutting edges through material that requires excessive pressure.

Do not use this tool to cut bonsai wire, nails, screws, or other metal.

When removing larger amounts of wood, work progressively rather than attempting to remove too much material in a single cut.

🧴 Care Instructions

After use, remove sap, wood residue, dirt, and moisture from the cutting surfaces.

Wipe the tool thoroughly and keep the pivot area clean. Apply a small amount of suitable tool oil when necessary.

Store indoors in a clean, dry environment.

Proper maintenance is especially important for precision bonsai cutting tools.

🌿 Kaneshin No.10B Thin-Blade Knob Cutter

The No.10B combines a compact 175mm body, specialized knob-cutting geometry, and thinner cutting edges than the standard No.10.

For Mini and Shohin bonsai enthusiasts, its biggest advantage is not simply its size—it is the combination of compact dimensions and a slimmer cutting profile designed for precise work in limited spaces.

📦 Shipping

Carefully packed and shipped directly from Japan. Tracking number provided.