[Cool diamond burrs in test conditions].

In almost 500 differentiated measurements of temperature and grinding performance of diamond grinding tools with and without cooling grooves--in conjunction with both a turbine and a high-speed angle piece--under practical conditions, it is demonstrated how many-sided this complex of issues is; it is further demonstrated that it is not possible to generally conclude that all so-called CD grinding tools have better cooling capabilities and/or that they are better suited to prevent excessive heat generation in comparison with grinding tools without cooling grooves. This is equally applicable to grinding performance.