- Nothing
- Bosch rolled up. out of 4 perforators of the end of 19th year, 3 buttons failed in a year, two of them had an anti-vibration system cylinder shattered inside. and one of these days the rotor of one burned out. For one, in half a year the barrel was worn out so that the ball began to fall inward. What are barrels made of today that it wears out earlier than the plate that presses this ball? used to buy 2-24 so they worked for 2-3 years, only they changed cartridges.