CNC Shark Forum

I have the water cooled spindle on my HD4 extended and like it but wish i could use larger spiral bits for the pocketing i do. I have considered buying a different one that has an er20 collect to accept 1/2" shanks. I assume the spindle with the er11 collect is supplied in order to use smaller bits ...

This thread is a bit old but i wanted to point this out for future viewers. I use RV antifreeze for my spindle. If you live in a cold climate keep in mind this type of antifreeze will turn into a slush. It will not expand like water when this happens but it would definitely affect the flow through t...