Free 173 Best Homemade Tools eBook:  
Results 1 to 2 of 2

Thread: adjustable step drill for bolt

  1. #1

    Join Date
    Dec 2013
    Thanked 2 Times in 2 Posts

    glockart's Tools

    Lightbulb adjustable step drill for bolt


    I present my too step drill.

    Turn and drill steel in round bloc and file the groove use air grinder tools.
    And oil quenching.

    finish manual sharpening.

    For good result in mild steel with a slow rotation and abundant lubrication.

    Thanks and sorry for my bad english.

    adjustable step drill for bolt-dsc_7516.jpgadjustable step drill for bolt-dsc_7518.jpgadjustable step drill for bolt-dsc_7519.jpgadjustable step drill for bolt-dsc_7524.jpg

  2. The Following User Says Thank You to glockart For This Useful Post:

    kbalch (01-03-2014)

  3. #2
    kbalch's Avatar
    Join Date
    Jun 2012
    Clermont, FL
    Thanked 516 Times in 375 Posts
    Thanks glockart! I've added your Two Step Drill Bit to our Metalworking and Machining categories, as well as to your builder page: glockart's Homemade Tools. Your receipt:

    Post your reply!
    Join 41,949 of us and get our 173 Must Read Homemade Tools eBook free.

    173 Must Read Homemade Tools

Thread Information

Users Browsing this Thread

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

Tags for this Thread


Posting Permissions

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