Features: *Brand new unused *When used, it is gouge, impact and hammer, not rotation. If it is electric hammer mode, it will rotate. You need to select tools with impact or hammer mode * need to pay attention to strength and skills, because of the power of the pick, don't hit the pick or the center of gravity will crush the power tool.On. Hold the tool and maintain a force perpendicular to the working *Continuous work - - about hours, after high temperature, it is recommended to change a set of alternate use. *There are Square ,Hex，round 3 different specifications to choose to meet the use of your different power tools Specifications: Type:Power tools Converter Adapter Material:Metal Color:gray（as picture ） Size:A，B，C(optional)（as picture ） Model:Square ,Hex，round（as picture ） Quantity:1pc Scope of application: concrete, red brick wall, foam brick drilling Package Included: 1*Power tools Converter Adapter(optional) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made from high-quality materials, our tools products are durable and affordable to meet your daily needs. Please check the product size and model before placing an order to ensure it is the product you need. When you encounter a problem, please contact us and we will help until the problem is perfectly solved. When you receive your product, whether you are satisfied or not, we want to hear your opinion. Every customer can enjoy free refund or exchange service for damaged/quality problem products.