Milwaukee 2960-20 M18 FUEL GEN-2 Lithium-Ion Cordless Impact Wrench

Milwaukee 2960-20 M18 FUEL GEN-2 18V Lithium-Ion Mid Torque Cordless 3/8" Impact Wrench with Friction Ring (Tool-Only). Manufacturer: Milwaukee. Q: What size drive / anvil does this wrench use?. Impacts Per Minute (IPM) Mode 3 &-4: up to 3,100.