I have this old Ajax pillar drill Type B-16L which has been gaining dust for a few years. Now cleaned up and painted, I should try to get it going. So my questions. There is no wiring or cable from the side of the motor forwards to the missing on-off switch. I have bought a suitable on-off switch and shall mount this to the side of the drill assembly but images in Google show it should be connected to a tin box (junction box?) immediately behind this. Is that what this box does? Is it simply a junction box? What gauge and type of cable should I use? Rubber insulated? I should attach images of my drill but I cannot transfer images from my phone to my lap top. Thanks.