Product name in Arabic: Hummer, 28 mm charging, 3 movements without Total batteries, the name of the product in English: Total Hammer Drill 28mm Country Country: China Mark: Total Product Specifications: Strong Engine: A Strong Bruce Engine that guarantees continuous work and long work. High rotation speed: The rotation speed without pregnancy reaches 930 rpm, providing high efficiency in the work. High effect rate: The effect rate reaches 4,400 beats per minute, making it ideal for drilling in solid materials. Strong impact strength: The 4.5 -joule -widget effect power provides a strong ability to penetrate solid materials. Large pits: can be drilled in concrete up to 28 mm, steel up to 13 mm, and in wood up to 40 mm. SDS Plus: SDS Plus provides ease of use and rapid change of flys. Attachments: The product comes with 3 cracking feathers (8 mm, 10 mm, 12 mm) is ready for use. Technical specifications