If your router came without a speed chart, & it has electronic speed control, with a little math you can make your own chart.
Most speed charts, relative to the size of bits 1" & larger dia. usually recommend a tip speed in the range of 104 to 107 mph.
For example :
2" dia.bit = 18,000 RPM = 107 mph tip speed
3.5" " = 10,000 " = 104 " " "
Lee |