Free 50 Best Homemade Tools eBook:  
Remove advertisements
Results 1 to 5 of 5

Thread: Improvised deep throat calipers

  1. #1
    mklotz mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    1,440
    Thanks
    99
    Thanked 2,700 Times in 935 Posts

    mklotz's Tools

    Improvised deep throat calipers

    The typical six or eight inch calipers don't have jaws deep enough to measure large objects. Fortunately, it's easy to improvise a deep jaw caliper using things commonly found in many shops.

    Almost everyone has a combination square. If you're lucky enough to have two, you can remove the head from one, attach it to the other, and voila, deep jaw calipers.



    If you don't have two squares, but have the protractor head for your square, you can use that to form the second jaw. Just be sure to square it against the combination head before making your measurement.



    Even if you have two heads and the protractor head, I highly recommend the Hi-Gage Square Attachment. In addition to being useful as a caliper jaw...




    it has many other uses, some of which are pictured here...

    Lee Valley Tools - Hi-Gage Square Attachment

    You can buy it here (standard disclaimer applies)...

    Hi-Gage Square Attachment - Garrett Wade

    but shop around - that may not be the best price.
    Last edited by mklotz; 07-08-2017 at 03:10 PM.
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

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

    C-Bag (07-23-2016), Jon (07-25-2016), PJs (07-25-2016)

  3. #2
    Content Editor DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,087
    Thanks
    327
    Thanked 626 Times in 567 Posts

    Thanks mklotz! We've added your Deep Throat Calipers to our Calipers category,
    as well as to your builder page: mklotz's Homemade Tools. Your receipt:



  4. #3

    Join Date
    May 2013
    Posts
    30
    Thanks
    39
    Thanked 6 Times in 6 Posts
    Marv, just wow! Thanks for this nugget!

  5. #4
    mklotz mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    1,440
    Thanks
    99
    Thanked 2,700 Times in 935 Posts

    mklotz's Tools
    Quote Originally Posted by j.bickley View Post
    Marv, just wow! Thanks for this nugget!
    You're very welcome.

    If you have a metalworking shop with a surface plate and a height gauge, you can often use those to imitate a large capacity, though not necessarily deep throat, calipers. The problem arises if the part to be measured can't be brought to the surface plate. That's where these improvised calipers come into their own.

    Not the accuracy of a micrometer but most parts that big don't need to be measured with micrometric accuracy. A pi tape will give good accuracy for smooth round parts but is no help on other shapes.
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

  6. #5
    gatz's Avatar
    Join Date
    Feb 2016
    Posts
    17
    Thanks
    0
    Thanked 18 Times in 7 Posts

    gatz's Tools
    that's great idea
    always been a problem with 6 or 8" calipers


    Post your reply!
    Join 33,912 of us and get our 50 Must Read Homemade Tools eBook free.



    50 Must Read Homemade Tools

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
  •