Smoothly countersunk
The same rule applies to universal deburring and counter sinking tools used, for instance, for tapping drill holes and for counter sinking screw heads as to other tools: smooth surfaces must be generated, while always guaranteeing long tool lives.
Countersinks from LMT Fette have optimized chip clearance and optimized chip removal flow; most can be applied universally, and improve the surface quality of countersinking.