A quality four-edged drill with precisely placed carbide blades (high hardness), the blades are held in the drill body by soldering at a temperature of over 1000°C - for better tolerance of high temperatures during drilling, the special shape of the drill's helix ensures good drainage of the drilled material from the hole - fast and powerful drilling, use: for hammer drilling in marble, stone, ceramics, bricks, concrete, masonry, etc., attachment: SDS +, packaging: plastic card with euro hinge, dimensions: indicated in the product name.