Here is a great guide if you want to learn more about your cnc bits
Also I highly recommend you guys grab yourself a brand new Onsrud 2017 catalog they just re did everything and its a very very nice all color catalog
make sure and get the “Production Routing Tools” catalog
http://www.onsrud.com/files/pdf/LMT-Onsrud-CNC-Prod-Routing-Guide.pdf