External grinder - cutter for rounding off metal and wooden elements. The working area measures 3 mm at the bottom and 3 mm at the top, with a depth of about 12 mm. The housing contains three steel cutting blades with a width of approximately 1.5 mm, made from YG8 carbide. This material allows for efficient rounding of rods made from stainless steel, hardened steel, copper, brass, aluminum, fiberglass, wood, and plastic. An important application is smoothing the ends of threads on screws or rods. The drill speed must be adjusted depending on the material being processed. Purpose: external grinding tool - cutter for rounding and smoothing metal and wooden elements.