VOLTAGE : 20V HEX SHANK: 1/2″ MAX. TORQUE: 300NM 20V LI-ION 2.0AH BATTERIES WITH 2PCS BATTERY PACK WITH 1PC 1 HOUR CHARGES WITH 3PCS SOCKET: 21MM, 19MM & 17MM SPECIFICATIONS NO LOAD SPEED (RPM) : – SOFT IMPACT MODE: 0 – 1300/MIN – HARD IMPACT MODE: 0 – 2100/MIN IMPACT PER MINUTES: – SOFT IMPACT MODE: 0 – 2000/MIN – HARD IMPACT MODE: 0 – 3300/MIN RATED VOLTAGE: MAX 20V