Chart basics 101 from Oelheld!  The product selection chart from Oelheld-gmbh is real easy to like.  It is operation specific and provides three colors to separate WELL SUITED, SUITABLE, NOT SUITABLE by operation and material for each fluid.  It's an easy to understand table that every End User can appreciate. Important to the Oelheld approach is the listing of operations along with materials as separate columns on the same chart.  We find that actually simplifies the chart. Charts like this help you to consolidate your fluid application choices. Suppose you have maximum of machining operations and just a few grinding operations on a central system. From the Chart, you can select an overlapping fluid that would be acceptable for all, and begin your further inquiry and testing from there.  So Oelheld has more than the coolest logo in the business, they have one of the very best product charts in the industry.