Homemade Marking Knife

[Rorschach]

First post but been lurking for a while looking at the awesome stuff made.

So, something I have been wanting to make for a little while. Not the prettiest tool but it's functional, if I were making them to sell I would use a nicer wood for the handle.

All made from scraps and "upcycled" materials as they call it these days. Handle is unknown hardwood dowel from an old broom handle I think. Ferrule is 1/2" copper pipe from a section of split pipe I had to remove this winter, blade is HSS planer blade.

I went for the double bevel not sure if I will use it, but it wasn't any harder to make and if a right hander comes into the shop they may appreciate it.
Grind is quite steep so it pushes the blade tight to the rule/square but also makes a nice V ready for a saw or chisel to sit into. Edge retention should be excellent. Quite happy for something made in about 2 hours or so.