The Power Tool Set 4 in 1 21V Brushless Li-ion Battery Cordless Drill Hammer Wrench Electric Tool Set is a multifunctional set that includes an electric hammer, grinder, drill, and wrench. It is suitable for woodworking DIY projects and comes with a 6-month warranty. The set is made by AMOEBA and offers customizable options, along with high-quality materials and reliable performance. The tools are neatly stored in a hard case for easy organization and portability.