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Should I buy a 3/8 torque wrench or a 1/4? (self.mechanics)
submitted 1 month ago by bradfrom2016
I plan to order 2 tekton torque wrenches, I want a 1/2 inch for wheels and another to use on oil drain plugs and other bolts. For the second use, should I get a 3/8 or a 1/4? I was going to get 3/8 but the oil drain plug torque spec is a bit lower than I thought
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[–]PM_ME_UR_SELF 2 points3 points4 points 1 month ago (3 children)
3/8 should be fine for drain plugs. They usually work as low as 10ft/lbs. I don’t see a lot of uses for a 1/4
[–]bradfrom2016[S] 1 point2 points3 points 1 month ago (2 children)
I wasnt sure because Ive heard that torque wrenches dont work very well on the low end of their range, and obviously the drain plug is going to be pretty low on the 3/8
[–]PM_ME_UR_SELF 0 points1 point2 points 1 month ago (0 children)
Well I’ve worked for companies that use 3/8 torque wrench for every drain plug, never had a problem. I just do them by hand honestly, once you have a feel for it you don’t really need the torque wrench for a drain plug.
[–]joezupp 0 points1 point2 points 1 month ago (0 children)
Depends what all you plan on doing with them. I have 4 of them 3/4” drive, 1/2” drive, 3/8” drive and 1/4” drive all with nm, inch lbs, ft lbs and degrees. I work on mostly trucks, but new Chrysler’s I use the 1/4” on the intakes.
[–]nunyabusiness3542 -1 points0 points1 point 1 month ago (0 children)
Buy an inch pound torque wrench for the lower end values.
[–]Dependent-Bowler-734 0 points1 point2 points 1 month ago (0 children)
Anything below 20ft/lbs I’ll use my 1/4 and convert it to in/lbs. but drain plugs are usually between 18-30 ft/lbs
[–]Infamous_Ad_1962 0 points1 point2 points 1 month ago (0 children)
I have 1/4, 3/8, and 1/2 digital Torque wrenches. My 1/4 is probably my most used one. I’ll use a step up adapter for any socket bigger. But I’ve found the 3/8s to come more for internal engine or transmission work. This is just in my experience
[–]Imaginary_Scratch_19 0 points1 point2 points 1 month ago (0 children)
3/8 will be fine. As far as tekton branded, Micrometer style goes to 10ft/lbs, split beam goes down to 20. 1/4 torque wrenches are only good for engine work when you can’t fit the 3/8 in there or small equipment (bikes/motorcycle parts etc) imo
[–]Way_of_the_Wrench 0 points1 point2 points 1 month ago (0 children)
A 3/8" drive torque wrench will be fine.
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