One brand or hammer hammer has a good brand?
Not suitable for construction work. If you are used in some buildings, home improvement and other high intensity, or buy the power of it, online evaluation is really good, big, drilling speed, building. You can do it on the construction site. The price is better than the big, some cheaper, you see is mainly used in what place, their own home or more site construction?.
Powerful and big brands are domestic good brands, quality can be, but personally feel that some of the products are more suitable for home use, are some light and small products.