Highly precise carbide reversible blades. A sharp tool is always available thanks to four blades. No resharpening is therefore necessary, and a constant cutter diameter is guaranteed. Always a sharp router due to the reversible blade system|Simple replacement due to supplied TX key|Blade replacement allows the diameter of the router to remain the same|Thanks to the carbide, very long service lives are achieved. Rounding wooden and plastic edges|For finishing off solid wood|Reversible carbide blade provides extreme precision, no resharpening required. reversible blades can be used 4 times. for Wepla roundover cutters 499810