Great set for hobby use. contains 1/2 " impact wrench and wrench. In addition, a tool oil is included. fast air interface. oil-filled plastic bottle and percussion cartridges. In a strong plastic case. The set includes: 1/2 " impact wrench max 312 Nm1 / 2 " wrench max 61 Nm1 / 2 " percussion cartridge 9-10-11-13-14-17-19-22-24-27 mmOilterOil refill bottle1 / 4 " interface