The core activity of Grisobohr AG includes the execution of concrete drilling and cutting work, including: Drilling: drilling lengths of up to 15 meters, horizontal, vertical downwards, vertical upwards, single and double-sided inclined, dry drilling without water and mounting holes; Cutting and milling: larger circular cutouts, cutting of concrete and natural stone in large dimensions; Cracking and breaking: cracking and breaking of concrete and natural stone; Grinding: grinding of cement coating, concrete or natural stone floors; Coating and sealing: coating of exterior stairs and balconies, sealing of joints, fire protection through compartmentalization and cladding, bonding reinforcement with CFRP laminates.