Picking up a Mahindra 1626 tractor with several attachments. Looks like the biggest bolt/fastener is 22mm. Only have a light duty impact wrench and looking to get one with more a$$. I’m thinking a 1/2” would be fine for up to 22mm. I don’t have any 3/4” sockets so that would be an additional expense. What do you all think?
1/2” or 3/4” impact wrench?
- Thread starter autobon7
- Start date
Snapped-off
Well-known member
A modern-day ½" for sure.
Do you mean a fastener with a 22mm hex head or an 22mm thread diameter (i.e. M22, 32mm hex)?
A decent 1/2" impact is definitely more than enough for the first and very likely sufficient for the second in most applications.
While a 3/4" impact could be useful for larger fasteners, the tool and corresponding sockets are larger/heavier and may not fit in as many places. 1/2" impact sockets generally stop around 36mm although you can get a little larger or there may be some very tight 30/32mm hex fasteners that benefit from 3/4" drive.
A decent 1/2" impact is definitely more than enough for the first and very likely sufficient for the second in most applications.
While a 3/4" impact could be useful for larger fasteners, the tool and corresponding sockets are larger/heavier and may not fit in as many places. 1/2" impact sockets generally stop around 36mm although you can get a little larger or there may be some very tight 30/32mm hex fasteners that benefit from 3/4" drive.
dr_clyde
Well-known member
How much air you got?
A 3/4” impact is an air hungry tool. You gotta flow a lot of air to make them work well.
Just get a 1/2” impact and if you really find yourself needing a bigger one you’ll know.
A 3/4” impact is an air hungry tool. You gotta flow a lot of air to make them work well.
Just get a 1/2” impact and if you really find yourself needing a bigger one you’ll know.
22mm hex head. Thinking about grabbing the new 1/2” Bosch Profactor impact wrench. Put up impressive numbers on torque test channel. Already deep into the 18v Bosch line.
I stupidly bought the Milwaukee 3/4 2864 thinking it would be significantly better than the 2767 that I already had.
There's very little practical difference. I'm thinking most of it is in the socket weight.
I say get the 2767 or the latest from DeWalt that's actually better. I forget the model number. It'll wallow out your sockets but replacing those would be cheaper than going deeper with 3/4 drive stuff.
There's very little practical difference. I'm thinking most of it is in the socket weight.
I say get the 2767 or the latest from DeWalt that's actually better. I forget the model number. It'll wallow out your sockets but replacing those would be cheaper than going deeper with 3/4 drive stuff.
I need to correct that. It's never stupid to buy tools, and I got a tool plus battery for the price of tool only. So it was a win.
But when I change my tires, it doesn't matter which one I use.
The Bosch or DeWalt would probably be a more impressive change/upgrade than the drive size itself.
But when I change my tires, it doesn't matter which one I use.
The Bosch or DeWalt would probably be a more impressive change/upgrade than the drive size itself.
Theronswanson
Well-known member
- Joined
- May 13, 2023
- Messages
- 540
When I was a diesel tech, our shop had a 3/4" gun and rarely used it. We used a 1" for lug nuts.
Lucid Moments
Well-known member
How salty does it get where you are and how much will your tractor be in the salt? If it isn't salty or your tractor doesn't see much work near a road then 1/2" will probably be fine. If it is going to get rusty then you might want 3/4".
Ended up ordering the Bosch Profactor GDS18V-740N. Thanks for everyone's input. (1/2" anvil)
toyotadriver
Well-known member
- Joined
- Dec 30, 2010
- Messages
- 1,586
I did have some issues with some large bolts on my tractor bush hog that a 3/4 impact would have been nice to have. I got the 1/2 to work by using heat but eventually I'll be getting a 3/4 impact for some really stuck bolts.
chris142
Well-known member
My 30+ year old I.R. 231 will take those off. The tire guys sure like to hammer them on with that 1" impact. Totally not necessary.
chris142
Well-known member
Any decent 1/2 impact can deal with that bolt size easily.
chris142
Well-known member
Don't need that size just for lug nuts!
Well, sometimes you do. Otherwise it just makes quicker work of it.
chris142
Well-known member
Truck lug nuts wether they are stud pilot with inner and outer nuts or the newer hub pilot wheels are to be torqued to 500 ft lbs. Any decent 1/2 gun can do that.
Over torquing them can cause the studs to break and you lose a wheel.
Theronswanson
Well-known member
- Joined
- May 13, 2023
- Messages
- 540
Now no. Most cordless 1/2" can easily do that. 20 years ago, we had one 1/2 air powered gun that could barely take them off. Crazy how quickly time changes.
garfunkle24
Well-known member
^ When I grab the big gun at work it's for taking them off, not putting them on. Tell the guy who put them on about over torquing.
Yeah it'd be nice if they were all torqued properly or never saw rust but hey. This is the real world.
They literally make 1" D handles with extended anvils for trucks because of the need.
That should be a satisfying beast. I forgot all about Bosch.
It performed great on the torque test channel on the tube. Plus I have been very happy with my other Bosch 18v tools so it was an easy decision to go with the Profactor GDS18V-740N when I seen how good the numbers were when tested.
humpty
Well-known member
A nice long stout breaker bar are handy for those rare occasions when the impact struggles.
I had a rusted in bolt the other day that just wouldn't break free. Grabbed my 36" 3/4" breaker bar, cracked her loose and impacted it the remainder. All part of life in salt country.
I had a rusted in bolt the other day that just wouldn't break free. Grabbed my 36" 3/4" breaker bar, cracked her loose and impacted it the remainder. All part of life in salt country.
We should add that 3/4" drive sockets are considerably more expensive than 1/2".
Ton ton
Well-known member
I noticed in the Air Works flyer that the DeWalt 3/4" drive high torque impact gun was $20 cheaper than 1/2" drive DeWalt gun. I have no idea if 3/4" drive has more beans or not to be honest. But you can buy a long handle 3/4" breaker bar to bust the rusty bolts loose and then use the impact gun the rest of the way.