On the Tool Shop Direct link I gave I can see a No 5 tote directly underneath the No 4. Or rather I can't see it, because the picture says "Image Coming Soon".
I saw a tip for drilling a tote hole using a bench drill press. Drill short pilot holes where you want the tote hole to start and finish. Mount a metal tapered point - such as some 6mm diam rod - on your drill press table. Wind down the drill bit and align the point to touch it. Back off then place one tote hole on the point and lower the drill bit onto the other hole. Drill most of the way through before flipping the tote over to finish the hole. Never tried this and I guess you would need to hold the tote with some grips, whilst drilling, if you value your fingers.