Slagborrning

Slagborrning, often translated as hammer drilling, is a drilling technique that combines rotation with a rapid hammering action. This percussive force is applied axially to the drill bit, allowing it to chip away at hard materials like concrete, brick, and stone. The dual action of rotation and impact significantly increases the drilling speed and efficiency compared to standard rotary drilling in such materials.

The mechanism behind slagborrning typically involves a clutch or cam system within the drill. As the drill rotates, the hammering action is generated by oscillating components that strike the back of the drill bit repeatedly. This rapid series of impacts breaks down the material’s structure, making it easier for the rotating flutes of the drill bit to extract the debris.

Slagborrning is commonly performed using a slagborrmaskin, or hammer drill, which is a power tool designed specifically for this purpose. These drills often have a switch to toggle between hammer drilling mode and standard rotary drilling mode, allowing for versatility. For extremely hard materials, specialized drill bits with carbide tips are used to withstand the abrasive forces and the impact. It is a widely used method in construction and DIY projects for tasks such as installing anchors, mounting fixtures, and creating holes for electrical or plumbing installations in masonry.