The extensive experience provided by MAPAL specialists is clearly demonstrated in precision gun boring tools in the quality of the tools. The design of the tools, which is perfectly adapted for the application in question, increases productivity and production reliability.The high requirements for balance and the guaranteed concentricity of the blades produced are all factors which are perfectly met by these tools. The quality of the precision ground PCD blade is the absolute maxi-mum. 100,000 bores are not unusual. Maximum care in production guarantees total efficiency both from the new tool and even when this has been reconditioned.