Making a Better Blade




Introduction: Making a Better Blade

My blades constantly snap while cutting hard objects, and i am afraid that the flying shrapnel might hit me. I decided to create a better blade that won't snap, be safer, and can stay sharp longer.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: What You Need


-your blade


Step 2:

hold the blade with the pliers, and put the flame of the lighter onto the blade until it turns black. The blade can be soaked in water or left to in the air.

Step 3: Stress Test

I bent the blades by pushing the blades on the table sideways to bend it. Then untreated blade snapped after 5 times of bending, the parts of the blade flew across the room. The treated one did not snap, even after 20 times of bending causing it to be safer than the other.

Be the First to Share


    • Backyard Contest

      Backyard Contest
    • Silly Hats Speed Challenge

      Silly Hats Speed Challenge
    • Finish It Already Speed Challenge

      Finish It Already Speed Challenge

    2 Discussions

    Dustin Rogers
    Dustin Rogers

    5 years ago

    Yep, you annealed it which made it softer. It is now less likely to snap, but will dull much faster too.


    5 years ago on Introduction

    I don't see how these will stay sharper longer, what you have done is annealed the steel and made it softer, unless it's an air hardening steel. I can't say that I've ever had one of those knives snap, the trick for a lot of items is to make multiple passes with light pressure.