Thinking of getting a 1 inch impact wrench ..
 

Thinking of getting a 1 inch impact wrench ..

Started by Sebulba, November 08, 2025, 02:25:16 PM

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Sebulba

Hello all,

I would like to get your input and suggestions.

I am thinking of getting a 1 inch air impact wrench so that I can change my shocks and check my bearing etc, all involving wheel R&R.

I have a manual torque multiplyer, but with age and lazyness, I dread doing it that way.

I have a pancake compressor, but it doesn't have the 17 cfm air capacity required.  My question: would it be feasible to use the bus air to power it?  If so, where would a guy tap the bus air to do this.

My bus air seems quite good.  From sitting for a month with 0 air pressure, we can be aired up and ready to roll in about 6 minutes.

Thinking of an air wrench, since they are less expensive than the new fancy battery models. 

Thanks

Seb
Back to the U.S. after 8 years in Europe.  
Bought a 1997 MCI 102D3 with Allison B500 on November 17, 2021 in Syracuse, NY.  Commenced living it that day and  drove it to Florida and New Mexico.  Converting as we go.  https://basicsuds.com

Utahclaimjumper

I have a really good 3/4 inch that hits 650 LBS and is easier to handle ,, I also run it off my onboard pressure..>>>Dan
Utclmjmpr  (rufcmpn)
EX 4106 (presently SOB)
Cedar City, Ut.
72 VW Baja towed

Sebulba

Quote from: Utahclaimjumper on November 08, 2025, 03:41:01 PM
I have a really good 3/4 inch that hits 650 LBS and is easier to handle ,, I also run it off my onboard pressure..>>>Dan

Hmmm, tell me more.  Brand?  Where did you get it and such?

Seb
Back to the U.S. after 8 years in Europe.  
Bought a 1997 MCI 102D3 with Allison B500 on November 17, 2021 in Syracuse, NY.  Commenced living it that day and  drove it to Florida and New Mexico.  Converting as we go.  https://basicsuds.com

Dave5Cs

"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

Sebulba

Back to the U.S. after 8 years in Europe.  
Bought a 1997 MCI 102D3 with Allison B500 on November 17, 2021 in Syracuse, NY.  Commenced living it that day and  drove it to Florida and New Mexico.  Converting as we go.  https://basicsuds.com

luvrbus

I have a 3/4 Air Cat it does the job ,I have a IR 1 inch air those are heavy suckers and your bus air won't run one but in short burst you have to have 1/2 air hose to use it
Life is short drink the good wine first

Iceni John

I thought long and hard about buying a 1" air impact for my bus's wheels, but chose to not do so mainly because of air supply limitations.   Instead I recently bought Harbor Fright's 3/4" Hercules battery impact wrench that, so far at least, has really impressed me.   Last week I took off the deep nuts for one of my rear suspension's 1" U-bolts (they're tightened to far more ft/lbs than wheels' lug nuts), and it hammered off the corroded nuts with absolutely no problem.   It seems to be well made, and it's more than adequate for my very occasional needs.   Yes, it's more money than an air impact, but it works well so it's a keeper for me.   So far, so good!

John
1990 Crown 2R-40N-552 (the Super II):  6V92TAC / DDEC II / Jake,  HT740.     Hecho en Chino.
2kW of tiltable solar.
Behind the Orange Curtain, SoCal.

belfert

Skip the air.  You'll use up the air in a pancake compressor in seconds with a big impact.  Get a battery operated 1" impact instead.  Milwaukee makes them now that work very well.  Personally, I have an Ingersoll Rand battery 1" impact that works great.  It uses dual batteries, and the kit I bought came with four batteries.  Zoro had a really good price plus I had a 20% coupon so it cost me around $1,100 before tax.  I only bought the IR because the Milwaukee version was not out yet.  I would buy Milwaukee today.  Yes, I have removed lug nuts on my bus with the battery impact.

A compressor and hoses large enough to run a 1" impact will cost as much, or more, as a battery impact from Milwaukee.

I have a pancake compressor, plus I have a couple of larger compressors.  I tried to use my pancake compressor with an air operated bottle jack to lift my bus.  The tank was empty in under a second, and the compressor could produce enough air to make the jack go up.  I had to go get another compressor as I was just going to burn up the pancake compressor.  I didn't realize an air operated jack needs that much air.
Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN

peterbylt

I have had the Dewalt DCF899 for several years, it was expensive but it kicks a$$.
700 ft-lbs of max torque and 1200 ft-lbs of max breakaway torque.

I was skeptical when I bought it, high torque, cordless impacts being new on the market at that time.

I have not been disappointed, I have yet to find a nut or bolt it won't remove, takes the lug and bud nuts off the MCI without any issue.
I see there is a newer version DCF900, with 1030 ft-lbs of max fastening torque and 1400 ft-lbs of max breakaway torque, but have no experience with it.

I chose the ½ inch drive version to make it more versatile and easy to use around the shop, I almost bought the ¾ drive version, but have not regretted the ½ drive.

A friend of mine has the Harbor Freight Ultra Torque Impact and says it blows away my Dewalt at a much lower price, but I have no personal experience with it.

Peter

Tampa Fl,

1989 MCI 96A3, 8V92TA

Sebulba

Quote from: peterbylt on November 10, 2025, 01:57:58 AM
I have had the Dewalt DCF899 for several years, it was expensive but it kicks a$$.
700 ft-lbs of max torque and 1200 ft-lbs of max breakaway torque.

I was skeptical when I bought it, high torque, cordless impacts being new on the market at that time.

I have not been disappointed, I have yet to find a nut or bolt it won't remove, takes the lug and bud nuts off the MCI without any issue.
I see there is a newer version DCF900, with 1030 ft-lbs of max fastening torque and 1400 ft-lbs of max breakaway torque, but have no experience with it.

I chose the ½ inch drive version to make it more versatile and easy to use around the shop, I almost bought the ¾ drive version, but have not regretted the ½ drive.

A friend of mine has the Harbor Freight Ultra Torque Impact and says it blows away my Dewalt at a much lower price, but I have no personal experience with it.

Peter

Great information.  Thanks

Seb
Back to the U.S. after 8 years in Europe.  
Bought a 1997 MCI 102D3 with Allison B500 on November 17, 2021 in Syracuse, NY.  Commenced living it that day and  drove it to Florida and New Mexico.  Converting as we go.  https://basicsuds.com

thomasinnv

I have a 1" harbor freight impact I have had for years, run it off the rear suspension tank in the engine bay. It will keep up well enough to r&r tires and run the air jack. That's all I need.
Some are called, some are sent, some just got up and went.

1998 MCI 102-DL3
Series 60 12.7/Alison B500
95% converted (they're never really done, are they?)

luvrbus

I have a couple of friends that carry the Velor 1 inch air impact from Amazon  that cost around a 100 bucks they work good not as heavy the H/F 1 inch (40lbs) ,to get full advantage of any air impact you have to meet the air supply  and demand  a 1/4 inch supply hose won't cut it,lol but with a 1/4 inch supply line you don't break any studs,the cheaper guns require 10 to 15 cfm @ 90 + psi for full advantage the 1000$ plus I/R guns get by on 5 CFM @ 90 lbs,I am not much on the H/F stuff but Lvmci and Van gave me H/F 1/2 drive cordless impact for my birthday and it does good job I use it all the time to twist of 1/2 inch rusted bolts if they don't come loose it will twist those off and is ok with me as long as it is not a bolt I have to drill and tap   
Life is short drink the good wine first

Sebulba

Quote from: luvrbus on November 10, 2025, 07:00:41 AM
I have a couple of friends that carry the Velor 1 inch air impact from Amazon  that cost around a 100 bucks they work good not as heavy the H/F 1 inch (40lbs) ,to get full advantage of any air impact you have to meet the air supply  and demand  a 1/4 inch supply hose won't cut it,lol but with a 1/4 inch supply line you don't break any studs,the cheaper guns require 10 to 15 cfm @ 90 + psi for full advantage the 1000$ plus I/R guns get by on 5 CFM @ 90 lbs,I am not much on the H/F stuff but Lvmci and Van gave me H/F 1/2 drive cordless impact for my birthday and it does good job I use it all the time to twist of 1/2 inch rusted bolts if they don't come loose it will twist those off and is ok with me as long as it is not a bolt I have to drill and tap

Hello,

I already have a Ridgid 1/2 drive battery impact wrench that I really like, but it won't handle wheel lug nuts.  That's what I'm really trying get a handle on, something, not too expensive that can handle those on the occasions I need it

I'm thinking the HF 1/2 won't handle that? Or?

Seb
Back to the U.S. after 8 years in Europe.  
Bought a 1997 MCI 102D3 with Allison B500 on November 17, 2021 in Syracuse, NY.  Commenced living it that day and  drove it to Florida and New Mexico.  Converting as we go.  https://basicsuds.com

luvrbus

Use what you have just buy a cheap 1/2 in drive 2 or3 to1 torque multiplier with a handle ,I have a Proto 2 to 1 that I have used for 50 years  I use it a lot instead of going to a bigger gun when using my 1/2 drive I/R gun, a knock off brand shouldn't cost much I seen those before with a 1/2 input and 3/4 output drive ,all my lug sockets are 1 in drive FWIW 
Life is short drink the good wine first

Sebulba

Quote from: luvrbus on November 10, 2025, 12:37:52 PM
Use what you have just buy a cheap 1/2 in drive 2 or3 to1 torque multiplier with a handle ,I have a Proto 2 to 1 that I have used for 50 years  I use it a lot instead of going to a bigger gun when using my 1/2 drive I/R gun, a knock off brand shouldn't cost much I seen those before with a 1/2 input and 3/4 output drive ,all my lug sockets are 1 in drive FWIW

That's an idea.  Sure a lot less expensive.

Thanks

Seb
Back to the U.S. after 8 years in Europe.  
Bought a 1997 MCI 102D3 with Allison B500 on November 17, 2021 in Syracuse, NY.  Commenced living it that day and  drove it to Florida and New Mexico.  Converting as we go.  https://basicsuds.com