Free 186 More Best Homemade Tools eBook:  
Get 2,000+ tool plans, full site access, and more.

User Tag List

Results 1 to 3 of 3

Thread: Dial Indicator Rod Extensions

  1. #1
    Supporting Member Paul Jones's Avatar
    Join Date
    May 2014
    Del Mar, California
    Thanked 1,442 Times in 655 Posts

    Paul Jones's Tools

    Dial Indicator Rod Extensions

    I make my own dial indicator rod extensions from 3/16 diameter O-1 drill rod. These can vary in length from 1 to 6 depending on the application. I hold a 4-48 die in the lathe tailstock die holder to cut the male end and cut 0.050 thread relief at the shoulder to provide a tight fit into the dial indicator. The female end thread is 4-48, threaded approximately 0.030 deep, and the first two threads are drilled out for a tight fit. Some examples of the various uses for the extensions include digital depth indicator extension on a small milling machine, hard to reach measurements with the dial indicator, and adding more travel length to a lathe carriage measurement where each extension is exactly 1 long. Thanks for looking.
    Attached Thumbnails Attached Thumbnails Dial Indicator Rod Extensions-dial-indicator-extensions-4-48-threads.jpg   Dial Indicator Rod Extensions-dial-indicator-unimat-milling-head.jpg   Dial Indicator Rod Extensions-dial-indicator-extra-long-extension.jpg   Dial Indicator Rod Extensions-extra-extension-avoids-making-di-adjustments.jpg  

    2,000+ Tool Plans

  2. The Following 3 Users Say Thank You to Paul Jones For This Useful Post:

    Catfish (Jan 21, 2015), jjr2001 (Sep 1, 2016), kbalch (Jan 20, 2015)

  3. #2
    kbalch's Avatar
    Join Date
    Jun 2012
    Clermont, FL
    Thanked 531 Times in 383 Posts
    Thanks Paul! I've added your Dial Indicator Rod Extensions to our Measuring and Marking and Metalworking categories, as well as to your builder page: Paul Jones' Homemade Tools. Your receipt:

    2,000+ Tool Plans

  4. #3
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Thanked 1,859 Times in 1,659 Posts
    Thanks for the tip, Paul Jones.

    2,000+ Tool Plans

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