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  • Chicago Pneumatic CP734H 1/2-Inch Drive Heavy-Duty Air Impact Wrench
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Chicago Pneumatic CP734H 1/2-Inch Drive Heavy-Duty Air Impact Wrench


List Price: $190.75
Price: $137.82 & FREE Shipping. Details
You Save: $52.93 (28%)
Only 15 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
  • Dyna-Pact oil bath clutch delivers smooth operation
  • One hand push-button forward/reverse
  • 4 positive power settings; full power in reverse
  • Handle exhaust directs air away from the workpiece and operator
  • CP Classic Tool- comes with a 2 year warranty standard!
See more product details
34 new from $112.44

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$137.82 & FREE Shipping. Details Only 15 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Chicago Pneumatic CP734H 1/2-Inch Drive Heavy-Duty Air Impact Wrench + Chicago Pneumatic CA129405 Protective Cover for CP734H + Ingersoll Rand SK4C3F 1/2-Inch Drive 3-Piece Lugnut Service Flip Impact Socket Set
Price for all three: $181.99

Buy the selected items together

Technical Details

  • heavy-duty

Product Description

Product Description

This Chicago Pneumatic 1/2in. heavy-duty air impact wrench with Dyna-Pact oil bath clutch to deliver smooth operation and extended durability. Delivers power and economy for general repair, transmission work, exhaust systems and body shops. Max. Reverse Torque (ft.-lbs.): 425, Min. Hose Size (in.): 3/8, Drive (in.): 1/2, Tool Weight (lbs.): 5.1, Reversible: Yes, Tool Length (in.): 7 1/2, Max. Torque (ft.-lbs.): 425, CFM at Load: 15, Inlet Size (in.): 1/4, Speed - No Load (RPM): 8,400, Working Torque (ft.-lb.): 25-310, Average Air Consumption (CFM): 3.7, Standard Bolt Capacity (in.): 9/16, Variable Speed: Yes

From the Manufacturer

The Dyna-Pact oil bath clutch on the top-selling CP734H 1/2-inch drive heavy-duty air impact wrench delivers smooth operation and extended durability. The CP734H is a perfect choice with power and economy for general repair, transmission work, exhaust systems and body shops. Working torque: 25-310 ft./lbs.; maximum torque: 425 ft./lbs.; blows per minute: 1020; free speed: 8400 RPM; average air consumption: 3.75 cfm; air inlet thread: 1/4-Inch NPTF; minimum hose size: 3/8-Inch; sound dBA: 93; length: 9.13-Inch, weight: 5.13 lbs.

Product Information

Technical Details
Item Weight5.3 pounds
Product Dimensions9.1 x 8.9 x 3.3 inches
Item model numberCP734H
Size0.5-Inch
Power Sourceair-powered
Item Package Quantity1
Number Of Pieces1
Special Featuresheavy-duty
Batteries Included?No
Batteries Required?No
Battery Cell TypeManganese
Warranty Description1-Year
  
Additional Information
ASINB0002SRM38
Best Sellers Rank #95,407 in Home Improvement (See top 100)
Shipping Weight6 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableJuly 7, 2004
  
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
Warranty, Parts: Parts
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Customer Questions & Answers

Customer Reviews

4.7 out of 5 stars
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Most Helpful Customer Reviews

36 of 36 people found the following review helpful By B. L. Ridenhour VINE VOICE on December 12, 2007
[Helpful? Not? Please vote.] :: My father has had basically this same impact wrench since he was my age. They've changed the designation a little, but it's still the ol' CP734, and I KNOW I was using his 25 years ago (and it's still torquing). The thing I like about the CP is that it's light. Don't get me wrong, the Ingersoll-Rand Model 231 (also labeled as Matco and Snap-On, and probably a half dozen others) 1/2" impact is the industry standard, but you'll notice a REAL difference after about 4 tire rotations. The IR is heavy. It feels close to double (~8lbs vs. ~5lbs), and what it buys you is about 100ft-lbs of torque (this is not as advertised, but I'm telling you ... that's the way it is). However, unless you're working on heavy equipment, the CP is more than adequate to properly torque, if not wring off lug nuts.

You don't usually need the added torque of the IR, and you definitely don't need a tool that works you harder. The lighter weight makes work faster and easier, and the CP is also quieter by around half. I've had mine for over 10 years. I wouldn't have any of the $20-specials out there either. They look like tools, but they're really just toys. New guys in the shop would invariably chuck them ASAP once they had the $$ for a real wrench. The only "normal" automotive job I've seen the CP struggle with is the big CV joint nuts on Hondas ... most everything else in my experience was faster and easier. There are easy rebuild kits (that's how my Dad's is still in service after 30 years) that will make sure your CP734 is going strong indefinitely. I think he's put new vanes in his three times now ... The light weight, industrial grade quality and overall performance make this my choice, and believe me, when I worked as a mechanic, I had plenty of tools to choose from. This is the impact I kept. Remember to put a drop or two of light air tool oil in the air inlet each time you use it, and I know for a fact it can last you a lifetime.
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11 of 11 people found the following review helpful By WillR4854 on June 26, 2009
I purchased this at the recommendation of a friend with the same model. I have a small IR compressor that spits out 5.3 CFM @ 40 psi and less at 90. Most of the wrenches needed more CFM but this one was on the low side. I am very happy to report that it gets the job done for me even with the low CFM. I am not using the gun @ NASCAR but for odd jobs around the house, it works fine. Could it work better with more CFM? Absolutely but if you use it in bursts, it works well. Construction is solid and it feels like a tool that will last for a long while.
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9 of 9 people found the following review helpful By JR on February 13, 2010
Verified Purchase
I like this wrench because its not too powerful so its a little easier on the hands, but it has enough power to do pretty much everything the $200-$300 wrenches can do. A lot of IR wrenches vibrate and are very clangy, while CP guns feel stable and the noise is muffled.
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7 of 7 people found the following review helpful By M.H. on July 7, 2010
I bought this from Tooltopia, assumed shipping would be from Louisiana but it came from SoCal, which took a few extra days for delivery. They shipped by Fedex ground the day after I ordered.

I was surprised to find that CP has not yet moved production to China. Mine was made in Japan in 2010, with excellent fit and finish.

This is undoubtedly the smoothest and strongest 1/2" impact wrench you'll find for $100. At 425 ft-lb, it will handle all but the worst stuck fasteners. Mine easily spun out a crank balancer bolt that my 40 year old Craftsman couldn't budge.

The IR231 may be slightly stronger, but it's also more expensive, louder, and vibrates more.
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5 of 5 people found the following review helpful By V.A. on February 23, 2011
GREAT impact gun! I'm using it every day at the tire shop. Compared it to IR231ha, MATCO1769. This gun is the best for the price. Well balanced, lighter, LESS VIBRATION and QUIET. Much easier on the hand then IR! And doesn't have that insane torque like MATCO when you strip lug nuts and brake studs in seconds. And if you want to brake a bad lug nut with CP, it will do the job, just have to wait a bit! Highly recommend this wrench!
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2 of 2 people found the following review helpful By E. Davis on July 30, 2012
Verified Purchase
Like other fine Japanese products, this is air impact wrench is well-designed and feels really good in your hand. It just fits, and the balance is right. The controls are simple, intuitive and ergonomic.

The ratio of power/air use is probably the best of the lot, so if you're working with a smaller/slower compressor, this wrench is an excellent choice. This wrench isn't as powerful as some, but it's got plenty of power for most projects involving cars and light trucks, and it's less likely to do real damage by over-tightening; a powerful wrench can strip a nut, pull out a stud or twist off the head of a bolt in the blink of an eye. This is less likely to do that.

My only complaint is that the owner's manual advises checking the clutch oil every few months, but there are no instructions as to how to do this. Professional users may know such things, but as a home mechanic, I'd appreciate having this information included in the instruction manual. Note that the manual advises injecting a couple of drops of Chicago Pneumatic CA000046 Protecto-Lube Air Tool Oil- 20 oz into the air intake before each use.

Edit: I recently used this wrench to remove a heavy 7-lug wheel off a large horse trailer. I also used it to remove the big-8-lug wheels from my daughter's F-250 diesel pickup. I easily handled both jobs.
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2 of 2 people found the following review helpful By Amazon Customer on November 28, 2012
Verified Purchase
I am the family handyman and enjoy working with my hands.I take a lot of pride in being able to help family and friends with projects and repairs that need to be done. I also take pride in doing it the right way instead of quick fixes that bite you in the behind later. It takes proper tool to accomplish that. I shop carefully for tools in order to get as many quality tools that i can for the budget that i have. This one fits the bill. It is a good all around impact for the home owner with mechanical hobbies. It should last forever. I would reccomend it to everyone.
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Chicago Pneumatic CP734H 1/2-Inch Drive Heavy-Duty Air Impact Wrench
This item: Chicago Pneumatic CP734H 1/2-Inch Drive Heavy-Duty Air Impact Wrench
Price: $137.82
Ships from and sold by Amazon.com

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