Draw knife?
- Thread starter abominable_scouse_monster
- Start date
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I made a draw knife a few years back.
It is only small (4 inch cutting edge), as I would have struggled to heat treat a bigger one with the facilities I have at home (only a blowtorch). It is made from an old leaf spring, and the hardest thing was getting it flat. I think I would use ground flat stock if I was making another. The blade was rough shaped and bevelled with an angle grinder. The tangs were cut out in line with the blade, and bent around afterwards with a bit of heat.
The grind angles are about the same as a wood chisel (25 degree primary, 30 degree secondary), and the heat treatment is on the soft side (more brown colour than gold or straw), as sometimes I rock the blade in a cut to break away a lot of waste, and I don't want the blade too brittle for that sort of use.
It is not a thing of great beauty, and has no pretensions to professional fit and finish, but it works and gives me great satisfaction to use it.
Hope this helps.
It is only small (4 inch cutting edge), as I would have struggled to heat treat a bigger one with the facilities I have at home (only a blowtorch). It is made from an old leaf spring, and the hardest thing was getting it flat. I think I would use ground flat stock if I was making another. The blade was rough shaped and bevelled with an angle grinder. The tangs were cut out in line with the blade, and bent around afterwards with a bit of heat.
The grind angles are about the same as a wood chisel (25 degree primary, 30 degree secondary), and the heat treatment is on the soft side (more brown colour than gold or straw), as sometimes I rock the blade in a cut to break away a lot of waste, and I don't want the blade too brittle for that sort of use.
It is not a thing of great beauty, and has no pretensions to professional fit and finish, but it works and gives me great satisfaction to use it.
Hope this helps.
.
