Another thing as recommended by my fire extinguisher supplier don't purchase a plastic valved fire extinguisher & expect it to work when you need it. Plastic has a way of deteriorating & when it does it shrinks & will let the pressure drop.
Also if in your shop you can put the fire out with CO2 as a first line of defense do so but do have an ABC fire extinguisher on hand ready to use too. Reason an ABC extinguisher not only gets in to everything but is corrosive when it gets into your motors & tool mechanics.
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart