The motor on mine is a 2hp 3 speed motor, the 2 levers on the cabinet are main isolator and then the other is the speed selector for the motor. The electrics on mine needed some attention when i got it so I now have only one lever which is the speed selector, this has 4 positions - 0,1,2,3. 0 being off.

The chuck mounting is a screw type with a large thread, not sure what size but I can maeasure it up if you need me to, as for the taper it is to suit the collets which came with my machine, again not sure what size but again i could measure one up if you need me to.