Stanley 60308410 Concrete Drill Bits (STA53060C), 6.0 X 100 Mm.
For punching concrete, brick stone made from Tungsten Carbide The spiral of the drill is longer and more convenient to use, durable, not easily broken.
Drink drill for concrete, stone, brick
Made from Tungsten Carbide
The screw of the drill bit more convenient and more convenient.