For removing the cutting edge. To remove the built-up edge; remove the clamped tool from time to time.
To increase tool life. With the hand lapper, the cutting edge is removed at an angle of 25 to 40 degrees. Taking into account the intended use, the blunt chamfer is 0.1 to 0.2 mm, in particularly heavy conditions up to 0.4 mm wide.
MACOLAEPP manual lappers are used for lapping the chamfers of free and rake angle surfaces, for breaking the carbide, HSS and SS cutting edges after grinding and for lapping clamped planing tools, turning tools, milling cutters, cutter heads, drills, reamers, punching tools, etc. in the machine and for point rounding.