Metabo SBZ18 18 Volt Cordless Hammer Drill/Driver Kit Type of battery pack Li-Ion Maximum torque, hard 549 in-lbs Drilling capacity in - Concrete 3/8 " - Steel 15/32 "/1/4 " - Wood 1 3/16 "/7/8 " Maximum impact rate 26800 /min 5-level adjustable torque, plus drilling level, plus impact drilling level