supply of 1/2 inch (13mm) cordless battery impact wrench etc. , 1/2 inch (13mm) cordless battery impact wrench along with 02 batteries. technical specifica tion : 850 watt power input , single battery required for operation, battery type li-ion, 1000 n/m maximu m fastening torque, vibration level m/s2 <= 20, 1900 rpm no load speed, sound pressure level (dba) < = 110, including carrying case, power cord length 2.5, battery voltage 18 volt, nut- busting torque 1000 n/m, power capacity of battery(watt hour) 18, high strength bolt m10-m24,standard bolt m12-m30, impac t per minute (ipm) max / hard / mid / soft: 0 - 2500 / 2400 / 2200 / 1900. [ warranty period: 30 months aft er the date of delivery ] ]