Abrasive caps, size 13mm, should not work at higher revolutions than 10,000 / minute. At higher speeds, vibrations can occur in the micromotor and shorten its service life.
• Grit 60 - extra coarse - for removing coarse calluses
• Grit 80 - coarse - for removing calluses
• Grit 150 - medium - for sanding leather
• 220 gradation - fine - for final smoothing of the surface