Distracted again today, so a scrappy effort. I have this machine for drilling out mortices for wood joints. It has a big handle that you turn to drive a rack and pinion on the drill body and push the drill and hollow chisel into the wood. It has lots of little knobs to control movement in different directions and position the hole, which makes it quite fun to use. It is certainly faster than drilling and chiseling out by hand, but it is very noisy, so I wear ear protectors. I quite often work on the floor, so I am crouched down by the machine where it sits on a little trolley with an end piece for a table clamped in it.