The SDS+ drill bit 8*210 mm is designed for drilling (drilling with impact) holes in concrete, granite (stone), brick. It is used with rotary hammers with SDS-plus chuck. On the working tip of the drill there is a carbide wear-resistant plate VK8.
The SDS+ 12*210 mm drill is designed for drilling (hammer drilling) holes in concrete, granite (stone), brick. It is used with rotary hammers with SDS..