The Neiko 10878A 20V Lithium-Ion Impact Wrench Set delivers heavy duty performance for fastening needs. Technical Specs No-Load Speed: 0-3000 RPM Impact Frequency: 0-3500 BPM Max Torque: 300 FT/LB Charging Time: 2 Hours The impact wrench set comes with the following: 1 x Neiko Impact Wrench1 x 2. 4A ETL Approved Fast Charger1 x 4. 0A Li-ion Battery4 x Sockets (17mm, 3/4", 21mm, 7/8")1 x Storage Case