Or a spiral ratchet screwdriver......still use it in the shop once in a while....for nostalgia.
In the 90's I was working as a foreman installing architectural millwork, in banks, libraries, country clubs, airports etc. Most of my crew were usually unskilled guys who could not cope prefinished 5" cherry crown moulding to save their lives. When we landed a job finishing out a five story hotel with crown moulding throughout, I suggested that we buy a machine called a Copemaster.
It will cope any moulding profile in a few seconds. With it we "precoped" left and right ends of crown moulding stock in the shop, making it easier for the installers on the job.
https://youtu.be/LWqF5r6RhyM
Threaded Mode