Description
Designed particularly for model painting!
- Single-cut (smooth cut)
- Metal file specialized for plastic use
- No file tooth
- File tooth only on flat side
- Since there is no file tooth on the convex surface, it is possible to file to the vertex without scratching the inverted edge.
- Kamaboko Fil (Half-Round File)
- Scratches the sides
- Barely scratches the sides
- For plastic use only





Filing putty causes clogging
Filing with strong force causes clogging
File lightly, using only the weight of the file
Do not use metal brush to remove debris
Damaged file tooth decreases cutting ability
Rust decreases cutting ability, so apply anti-rust oil on a regular basis
Easy to rust
The convex shape prevents bending, and can file with light pressure
What is a KAMABOKO file?
KAMABOKO File, is a file that is a shape of a kamaboko
Kamaboko is fish cake. This Japanese food is a processed seafood made from fish paste. This food is usually in a shape of a semicircle, which this shape in Japanese is referred to as a “Kamaboko shape”.
This may look like an ordinary half-round file, but there are no tooth on the convex surface
This, actually is a flat file
Does not have tooth
Tooth only on flat side
The convex shape increases the strength of the file, making it hard to bend
Transfers the strength to the surface since it doesn’t bend
Only need to focus on how to angle the file to the object, not requiring any extra force to file precisely
Using paper as an example…
A flat piece of paper hangs down
Convex shape makes it hard to bend
Simplified version
The convex surface does not have file tooth, preventing scratches on the side of the inverted angel
The convex surface does not have file tooth, making filing to the very edge of the inverted angle possible
However, the inverted angle needs to be between 180-90 to not scratch the sides
The convex surface will touch the side surface with a smaller angle
KAMABOKO File (Half-Round File)
In theory, the convex surface does not touch the side surface with an inverted angle from 180-90
The convex surface will touch the side surface if less than 90 degrees
Single cut sharp teeth creates a clean cut surface
The short grip is designed intentionally to make it unable to grip too hard
This prevents uneven filing, creating a flat surface
Handy size
Can reach into a space as narrow as 5mm
Scars on the file increases cutting ability and is not a defect
May be dents at the bottom of the grip, but does not affect the quality.
Width: | 5mm |
Total length: | 101mm |
Length grip: | 50mm |
Weight: | 12g |
File tooth: | Single cut (Smooth cut) |
Use: plastic (plystyrene, polypropylene, acrylonitrile-buta-diene-styrene, and polyethylene resin) only
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