The tang of this tool is just under 5/8″. I placed a drill chuck with a 5/8 forstner bit in the head stock and put my spur drive in the tail stock. I set the lathe to its slowest speed, advanced the quill slightly to apply pressure to the head stock, held the handle with my right hand and turned on the lathe with my left hand. Once the lathe was running, I grabbed the handle with my left hand and began advancing the quill with my right hand. During this process, I kept one hand on the handle at all times.