1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

How accurate is your torque wrench?

Discussion in 'Tools and Fabrication' started by Dragos80, Jul 4, 2017.

  1. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land
    Lots of people lately had some issues with either the lug nuts or other studs on their suspension.
    Torque wrenches are not all accurate and most of us don't go through the trouble to calibrate them as often as we should.

    Got my famous HF torque wrench a few year back and never had any idea how accurate it is.
    Decided to get a electronic torque adapter (reader) in order to have a better idea where my wrench is at and tried to calibrate it while at it.


    What brand do you guys use?
    What price range is a good for a DIYer, weekend mechanic?

    I feel mine is good for what it is for now, but I am always open to other ideas.


     
    b702012 likes this.
  2. half k cruiser

    half k cruiser

    Messages:
    4,922
    Likes Received:
    1,794
    Joined:
    Jun 12, 2011
    Location:
    Kansas
    I was thinking + or - 3% was pretty standard in the sub $100 category of wrenches. When you think about it, that's pretty damn close. On a 300lb set your talking 9lbs either way, not enough to make a real difference.
     
    LandCruiserPhil likes this.
  3. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land
    I figured you can make it pretty accurate, but within a narrower range. The more you deviate from that range, the more inaccurate it will become.

    You can get two of those cheap ones and calibrate one of them for a low torque range and the other for a higher torque range.

    I think they are usually on sale, or you can use a coupon and get them for about $15 each, so lets say $30 for both.

    I think Tekton would come close to the price of two of those HF. Currently it dropped from $37 to $33 on Amazon. It got good reviews, not sure how accurate it is though.
     
  4. LandCruiserPhil

    LandCruiserPhil Peter Pan Syndrome Supporting Vendor

    Messages:
    19,260
    Media:
    55
    Albums:
    3
    Likes Received:
    7,944
    Joined:
    Mar 10, 2004
    Location:
    Scottsdale Arizona
    If you think about where and when a torque wrench is used would consistency be just as important if not more than LBS accuracy?
     
    Stumpalama likes this.
  5. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land
    Absolutely. Time after time. Again and again.
     
  6. thorslc1977

    thorslc1977

    Messages:
    102
    Likes Received:
    23
    Joined:
    Aug 14, 2012
    Location:
    california
    Really like my digital Gearwrench one. Easy to use. Set to what value you want. Beeps and lights up as you approach mark. Also tells you exact last pull. For instance set for 50 lbs but will tell you last pull was actually 50.1 lbs
     
  7. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land
    Does anybody have any experience with Tekton torque wrenches?
     
  8. Stuparman

    Stuparman

    Messages:
    142
    Media:
    2
    Likes Received:
    194
    Joined:
    Feb 2, 2014
    Location:
    Port Townsend, WA
    I have a tekton, no idea how accurate it is. Looks and feels good though.
     
  9. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land
    :)
    My HF wrench looked and felt good too.

    Then I decided to test it.
     
  10. 1FZj80

    1FZj80

    Messages:
    1,033
    Media:
    10
    Albums:
    3
    Likes Received:
    170
    Joined:
    Apr 16, 2006
    Location:
    Cardiff CA
    i have a Proto, 3x Craftsman and PRC
    both standard beam/click and a strain gauge digital type
    i think the good ones are -+3% CW and CCW which i believe is a standard ASTM/ISO spec
    there is no way i would trust my China wrench to any precision work regardless of spec printed in the manual. just not the build quality of the German or USA made
    you should be able to get a decent torque wrench for ~$150
     
  11. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land

    That's too rich for my blood.

    I can get two HF for about $50 out the door and calibrate them for high and low torque respectively.
     
  12. 1FZj80

    1FZj80

    Messages:
    1,033
    Media:
    10
    Albums:
    3
    Likes Received:
    170
    Joined:
    Apr 16, 2006
    Location:
    Cardiff CA
    you have the test equipment capable of testing and calibrating a torque wrench but choose to use two $25 wrenches, one for high and one for low torque?
     
    John McVicker likes this.
  13. Dragos80

    Dragos80

    Messages:
    4,234
    Likes Received:
    3,490
    Joined:
    Nov 24, 2014
    Location:
    Traffic Land
    Compared to $150, sure. I can even fill it up and still be ahead.
     
  14. kbahus

    kbahus

    Messages:
    1,953
    Media:
    1
    Albums:
    1
    Likes Received:
    399
    Joined:
    Jun 13, 2010
    Location:
    SW Michigan
    For lugs and suspension stuff go with this (they have a few so make sure you get the model that fits your required torque range): Amazon.com: Precision Instruments PREC3FR250F Silver 1/2" Drive Split Beam Torque Wrench with Flex Head: Automotive

    That style wrench is nearly the exact same as the Snap-On model and I am certain Precision makes them for Snap On.

    You can also often find some nice German made torque wrenches on Ebay for a reasonable price. I have multiple Snap On digital torque wrenches that I use daily. They have worked well and are nice for me because I visibly read out the torque that I am pulling, this comes in handy in many ways. They also charge $50 for a calibration, which is reasonable.
     
    Last edited: Aug 12, 2017
  15. Corbet

    Corbet Speski OffRoad LTD. Supporting Vendor

    Messages:
    3,986
    Likes Received:
    940
    Joined:
    Oct 22, 2002
    Location:
    Durango, Colorado
    I have an old USA made Crapsman. Never tested it. Probably should.

    No one had made mention to back off your wrench when in storage.
     
  16. Steve83

    Steve83

    Messages:
    28
    Likes Received:
    11
    Joined:
    Thursday
    Location:
    Memphis, TN, Earth, Milky Way
    I bought a few used Snap-On TorqOmeters on eBay, and paid the truck man to have them rebuilt & calibrated. <$100ea for Snap-Ons isn't bad. The inch-pound one was a screwdriver-type with a broken handle, and they replaced the handle when they rebuilt for no extra charge. It came back so clean, I thought they might have just sent me a new one.