Method of drilling bores

摘要: In drilling a bore in structural component (3) using hollow cylindrical core drill bit (4) initially guide such as disk (1) or template (12) is secured to the surface of for guiding one inner outer circumferential periphery bit. At commencement operation, guided by and maintains centered position. The can be fixed known manner, an adhesive fastening elements (2, 6) driven directly into component. Generally bits smaller diameter (2) inside (12).