 How to cut a through mortise in a really thick workpiece or workbench leg? Hola woodworkers Paul crossing here small workshop guy I'm building some sturdy soft horses and in doing that. I need to cut a through mortise in over a three inch thick workpiece. I use my Powermatic Bench Top Mortiser to get most of the way through But as you can see it didn't get all the way through so now I need some solution to do the rest or the other side so I measured on the opposite side where I would put a drill hole and So there's the drill hole of each of the three legs I'm using a half inch drill bit in order to match the half inch pattern trim bit that I have in the router It's always a good idea to secure your work pieces so they don't move around So I've got the pattern a bit and then my plunge router it wouldn't have to be a plunge router and The idea here is just to drill a hole so that you can fit your router bit down through that hole and then when you Stick that router far enough in there so that the edge of the bit will start chewing away the material then your Bearing will run into the side wall from the other side and you'll get a nice clean mortise Finish it up with a chisel and you're all done Small workshop guy signing off