Grit selection  

Very high surface quality thanks to a unique grit selection in accordance with CIS
(Calibration for Industrial Standard, developed by sia Abrasives)

Grit calibrated in accordance with CIS Grit height, width and length defined	Grit selection in accordance with FEPA standards Grit height not defined
Your benefit: Perfect contact line thanks to homogeneous grit size	Your risk: Needle grits can cause scratches