Tool diameter (D): determines the machining efficiency and the level of detail that can be machined.
Large knives (such as those with a diameter of 6mm or more): used for large-area rough or precision machining, with high efficiency.
Small knife (such as Φ 1- Φ 3mm): used for corner cleaning and small detail processing.
Ball head radius (R): usually half the diameter of the tool (D/2). This is the key to calculating step distance.
Blade length (FL): determines how deep a surface can be machined. When selecting, it should be greater than the processing depth.
Handle diameter (S): commonly 3.175mm, 6mm, etc., need to be matched with the clamp.
Material and Coating:
Solid hard alloy: the most commonly used, balancing hardness and toughness, suitable for most materials (wood, plastic, aluminum, steel).
High speed steel (HSS): cheap, but prone to wear and tear, only suitable for soft materials or low-frequency use.
Coating (such as TiAlN): Used for processing high hardness materials (such as steel), it can significantly improve the service life.