Jump to content
I Forge Iron

Help with making a hot punch

Recommended Posts

Your material is a bit small for what you are trying to make/do. It could also be a bit better grade steel for that use. I like to use old cold chisels or pry bar steel. Old spud wrenches are real nice too! You CAN make a punch from 1/2" rebar but as you now know... It will have a short useful life and require frequent reshaping even if you use it carefully. More taper means more mass to help soak up the heat and more resistance to deformation which keeps the damage more confined to the tip of the punch, where you can rework it quickly. It also means just one or two more strikes before you have to pull the tool out and reheat or change punches (if doing many holes or in thick materials multiple punches are needed). To get the proper mass you want good heavy rod to begin with so that you'll have a thick punch at the striking/handle end. Most of my good punches are 3/4" to 1" diameter material.

Link to comment
Share on other sites

Old sharpening steels are really nice for hot punch material. Usually by just cutting off the handle and grinding a nice chamfer on the hammered end. They are usually a buck or two at the flea market and while not a handled punch, usually a foot long or so.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...