JonathonCrow Posted February 26, 2018 Share Posted February 26, 2018 I’ve forged a Kukri from a blade from a John Deere mower. Does anyone know the right quench liquid for this? I have plenty of oil and water available, but I want to make sure I get it right. Any input is appreciated. Quote Link to comment Share on other sites More sharing options...
JHCC Posted February 26, 2018 Share Posted February 26, 2018 John Deere says their lawnmower blades are made from spring steel. On that basis, if you proceed as for 5160, you'll probably be okay. You don't say what kind of oil you've got, but I've personally had good luck with canola. Quote Link to comment Share on other sites More sharing options...
JonathonCrow Posted February 26, 2018 Author Share Posted February 26, 2018 Burnt motor oil Quote Link to comment Share on other sites More sharing options...
Glenn Posted February 26, 2018 Share Posted February 26, 2018 Used motor oil has many nasty things in it. There is a post on the site about why it should be avoided. Besides if the motor oil were burnt, what would be left, soot and some ash? Quote Link to comment Share on other sites More sharing options...
sfeile Posted February 26, 2018 Share Posted February 26, 2018 I've done heavy mower blades in canola oil before and they turned out ok. A gallon of it is pretty cheap at the big box stores. It's cleaner and smells a lot better than motor oil. Quote Link to comment Share on other sites More sharing options...
Michael Cochran Posted February 27, 2018 Share Posted February 27, 2018 You could make friends with someone at the local deli etc that uses a deep fryer and they’d probably let you have their old oil. It may be a little fishy smelling but it’s free and much better (for your health) than using old motor oil. Quote Link to comment Share on other sites More sharing options...
JHCC Posted February 27, 2018 Share Posted February 27, 2018 Or seek out a doughnut shop. Less fishy. Quote Link to comment Share on other sites More sharing options...
DavidF Posted February 27, 2018 Share Posted February 27, 2018 I concur on Canola oil. I pick up big gallon jugs for $6. I have used motor oil, and I ‘now some guys use it, but after reading the threads about motor oil that Glenn mentioned, I felt a six dollar investment was worthwhile. I have been happy so far Quote Link to comment Share on other sites More sharing options...
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