Air Die Grinder Pneumatic High Speed Grinding Machine Alloy Steel 30000RPM 0.5 0.7Mpa 3mm European Style

1??Battery indicator. built?in reverse connection protection. will not burn out when connected reversely. 2??Equipped with LCD display. with white backlight. the data display is clear and intuitive. 3??Battery symbols + voltmeter. the two display modes can be switched at will. and the remaining power can be seen directly. 4??The working measurement range is 6?100V. with high accuracy and sensitive response. 5??Suitable for all kinds of instruments and meters. mobile power supplies. medicine equipment. electric vehicles. balance vehicles. scooters. unicycles. etc.Air Die Grinder Pneumatic High Speed Grinding Machine Alloy Steel 30000RPM 0.5?0.7Mpa 3mm European Style