Makita M3700 came yesterday. Diameter is 65mm outer Body and 85mm straight lenght for Mounts, so i can use 3 clambs to fix it to the mounting plate, should work pretty well. But this tool is 35000 rpm so i will try to lower the Speed with an electronic dimmer, hope that the torque will be still high for proper milling… btw. this tool is for 6mm drillbits. Now waiting for my stainless steel tubes…