Product description Performs all day long: cut over 100 meters of 12mm drywall with a 1/8" (3.17mm) bit on one ProCORE18V 4.0Ah battery Ergonomic Design: Light, compact, cylindrical design for comfortable holding Professional machine: brushless motor, dustproof switch with protection class IP5X and efficient dust collection for maximum service life in dusty workplaces Features for BOSCH GCU 18V-30 CORDLESS ROTARY TOOL (WITHOUT BATTERY AND CHARGER) Tool recording 3-6.4mm Rated power consumption 340 W No load speed 30,000 min-1 Uncertainty K 3 dB Sound power level 97 dB(A) Milling diameter 3.17mm Weight 0.915 kg Sound pressure level 95 dB(A) Vibration emission value ah 4.33 m/s²