Cutting Tool Edge Types…

All high quality cutters are Compression cutters. This means that both cutting edges cut on the same plane. The cutting motion stops when the two edges hit each other.

Precision cutters such as Tronex tools are machined as matched pairs of cutting edges. Nevertheless there is generally some edge rounding, some edge overlapping, or some other edge imperfection that prevent the two edges from coming together as two razor blades. The result is that cutting performance may be erratic and very fine leads (0.5mm and smaller) may not be cut at all.