AW Light weight patented series has 2 sectors: 1. Super Mini Wrench:  The super mini Impact wrench with size is 84mm, weights 1.11kgs . 2. Manganisum alloy made body made the weight lighter than 20%.   The air impact tools use wearable steel made motor, key components are used by Japan made spare parts: Vanes, bearings.  AIRBOSS with the decades of experiences, has developing whole series light weight air impact wrench/screwdriver, also angle wrench. Pistol and Straight two types.