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Thread: 1/4" or 1/2" impact wrench
10-23-2011, 07:25 PM #1
1/4" or 1/2" impact wrench
hey guys i am wanting to buy an impact wrench and im curious here i want one that i can work on my bike and my truck with (so if the 1/4" means it will do everything BUT take of the wheels of the truck thats not a big exception) with emphasis on working on the bike more than the truck.
im wondering whats the main differences with the 1/4" and 1/2" drive? just limited by range of sockets that will fit? if i need a metric impact gun should i not get one thats labeled in inches?
10-23-2011, 08:04 PM #2
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- Mar 2007
- Grand Prairie, Texas
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Get a 1/2" drive and you can use reducers when you need to use it for 1/4" sockets, but almost any socket in 1/4" is available in 1/2" too.
Get a set of metric sockets with 1/2" drive too. A couple of extensions wouldnt be a bad idea either.
10-25-2011, 12:00 PM #3
10-25-2011, 12:14 PM #4
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Definitely the 1/2" drive for a few reasons. First of all is torque. To keep from breaking sockets and snapping fasteners, the 1/4" drive will not put out nearly the amount of ft-lbs of torque the 1/2" drive will. Most of the time that's good, but sometimes you do want lower torque. Some impact guns offer adjustable torque. Also, if you need to break a small fastener loose, a 1/2" drive ratchet with a couple reducers should be able to loosen those fasteners. I have access to a 1/2 drive and a 3/4 drive impact for my impact needs.Christopher
1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 199K miles
2005 Saturn ION-2 Stock 255K miles
1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half
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10-25-2011, 12:15 PM #5
just want to clarify do you mean 1/4" or 3/8" or 1/2". using a 1/2" to do stuff with 1/4" will give you too much torque and break most things needing 1/4". reducing 3/8 to 1/4 or 1/2 to 3/8 is most common. In your example the 3/8 will do most everything except the bigger bolts (ie lug nuts bolts 18mm+). the 1/2 will do thos bigger ones. 1/4" is typically you smaller low torque bolts 10mm and below (obviously can do bigger etc. and 3/8 will reduce down) but look at the socket wrenches 1/4 is real small/short. 3/8 is bigger and a little longer, and the 1/2 is much bigger and longer giving more leverage.
in your other post. I use the 1/2 impact gun for lug nuts big bolts etc. I have a 3/8 impact wrench for the other smaller stuff.
Last edited by dsfloyd; 10-25-2011 at 12:17 PM.David
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10-25-2011, 04:15 PM #6in your other post. I use the 1/2 impact gun for lug nuts big bolts etc. I have a 3/8 impact wrench for the other smaller stuff.
do you mean you bought the same electric impact wrench from harbor freight? i plan on doing some work on my motorcycle and truck with the impact wrench. i think i may end up getting 1 of each tho, a 1/2" and a 1/4"
10-26-2011, 12:38 AM #7
10-26-2011, 12:21 PM #8
Chicago tools, too many nightmares here haha
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10-31-2011, 11:06 PM #9
I would go with the 1/2inch drive, way more power and overall performance. Buy a good one that will stay with you for a while. I have had a few that went to crap from Harbor Freight, yes the cheaper ones. I tell you what, 2 years ago I bought a Snap On 1/2inch drive that has various settings. The main reason I got it was for stubborn nuts and bolts. This gun has 1600lbs of take off and 1000 lbs put on. Yes that's right, no error here, this gun is my baby I have yet to see a rusted or stubborn bolt that this thing cannot buzz off.Dave V. -- Riverside, California
Owner of --
2008 Chevrolet Silverado 1500 4.8Liter V8 engine 2WD w/Kenwood Double DIN CD/DVD Player
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12-05-2011, 10:33 AM #10
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- Oct 2011
I'll spare any of the reasons because every one else has more or less covered it. lol but iv'e got both and i don't even use the 1/4" only use the 1/2"2003 Chevy Silverado
4.8l 5 speed
Reg cab Long bed
(Gotta love your truck!)
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