Tool for the cylindrical structure includes a guide part and the cutting part of knife part, and the spiral blade tooth to the bus with the tool cone has an angle θ, in order to facilitate the cutting

For cylindrical-shaped tool, and the structure of the knife, including parts and cutting part boot, and helical cutting edge to the teeth with the tool taper straps have a angle θ, so cutting

Cutting tool for circle columnar, the structure including to the knife part, the guidance part and the cutting part, also the spiral line knife edge tooth to has an included angle with the cutting tool conical surface generatrix theta, is advantageous for the cutting

Tool for cylindrical-shaped, structural parts, guide and cutting parts including a knife, and teeth of spiral blades and cutter cone bus has an angle θ, for easy cutting

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