CMT solid carbide compression (upcut downcut) flush trim bits are composed of a special super-micrograin formulation increasing hardness with a higher transverse rupture point.  CMT solid carbide spiral flush trim bits equipped with a double bearing, allow cabinet makers to shear wood and wood products cleanly, providing more efficient chip ejection than standard flush trim bits.
In production settings, this means  these bits will run cooler, stay sharper, last longer and increase shop productivity.