The Drill/Driver has a 1/2-inch heavy duty single sleeve keyless chuck with 24-position clutch to match your drilling and driving needs. The Impact Driver features a variable-speed trigger and 1,800 -inch/lbs. of torque for control and power when driving long and large screws or bolts. Reciprocating Saw includes a variable speed trigger to provide more control while cutting a variety of materials. Circular Saw has front pommel handle for 2-handed operation and left side blade for better cutline visibility. Multi-Tool features a lock-on button for superior ergonomics and reduced fatigue. The Work Light features an ergonomic design and 160 Lumens of light output. Lithium-Ion 1.5 Ah and 4.0 Ah Batteries provide longer overall life and 18V Charger is compatible with all ONE+ Li-Ion Batteries.