Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 2 of 2

Thread: Homemade drawknife from circular saw blade - video

  1. #1
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    26,433
    Thanks
    8,100
    Thanked 40,246 Times in 11,775 Posts

    Homemade drawknife from circular saw blade - video

    Homemade drawknife from circular saw blade. By House master. 3:55 video:




    Previously:

    Homemade forged laminated drawknife - video
    Circular saw blade sharpening machine - GIF

    186 More Best Homemade Tools eBook

  2. The Following 2 Users Say Thank You to Jon For This Useful Post:

    Carnel (Mar 2, 2020), sak778 (Sep 12, 2020)

  3. #2
    Supporting Member Moby Duck's Avatar
    Join Date
    Jan 2016
    Posts
    400
    Thanks
    1,270
    Thanked 206 Times in 131 Posts

    Moby Duck's Tools
    You have done a great job of making this tool, keep up the good work, but I would like to offer some constructive criticism on the overall job.
    1. Tungsten/Carbide saw blades are normally made of low grade steel. There is no need for them to be high carbon steel because it is the carbide tips that are doing the cutting. You would have been better to make it from an old circular saw blade, originally made without tips, or an old hand saw.
    2. When making a round knife from an old non tipped saw blade it is generally considered that the outer rim should form the cutting edge. This edge has had the heat treatment and will be harder than the inner area near the spindle hole.
    3. I can see from the video that the steel was relatively easy to file, because it's soft. It needs to be hardened and tempered to get a good cutting edge. Your file touched lightly on the cutting edge should "skate off" when it is hard enough. If you can't achieve this hardness your saw blade was too soft for knife making of any kind. After hardening it needs to be cleaned up, then drawn and tempered. Very light straw colour on the cutting edge and the back of the blade should remain relatively soft.

    2,000+ Tool Plans

  4. The Following User Says Thank You to Moby Duck For This Useful Post:

    Andyt (Feb 29, 2020)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •