Put simply a thick layer of clay goes around the spine and half of the handle so while the edge of the blade is left exposed is quenched so it is hardened.
Making awn mower balde knfe.
By rg2013 in outside survival.
Things you might need.
Make a lawn mower blade knife.
Make a lawn mower blade knife.
Make a sweet knife out of a old junk lawn mower blade.
Mr volcano 3 pack knife blade steel 1095 high carbon annealed flat stock bar blade billets blanks for knife making forging bladesmithing blacksmithing 12 inch x 1 5 inch x 3 16 inch 4 7 out of 5 stars 295.
So from a lawnmower blade you can make a knife that will act like a lawnmower blade it will bend instead of breaking and smoosh instead of chipping.
If the blade is exceptionally dirty or caked spray it with some penetrating oil and scrub with a stiff brush.
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It won t hold an edge very long but it will be well nigh indestructible in the face of abuse.
I ve found a wide variety of steels used to make mower blades from around 02 carbon un hardenable basically mild steel on up to something more like 08 about like 1080 steel a respectable carbon content for knifemaking.
Lawnmower blades are not made of high carbon steel but medium carbon steel at best.
Find the nut that holds the mower blade to the deck.
Take a dry rag or microfiber cloth and clean the blade before sharpening it.