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Internet # 304781263

Model # H4455

Store SKU # 1003097323

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650 ft./lbs. 1/2 in. Impact Wrench

$99.98
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  • Lightweight design
  • Can produce up to 650 ft./lbs. of torque
  • Includes built-in silencing
  • View More Details

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Product Details

About This Product

This 650 ft./lbs. 1/2 in. Impact Wrench is built for the professional user providing more power with less noise. This tool features a low weight housing and rubberized handle for added user comfort. The twin hammer clutch produces 650 ft./lbs. of torque. Each wrench includes an internal spindle run-out for noise reduction.

Highlights

Product Information

Internet # 304781263

Model # H4455

Store SKU # 1003097323

Specifications

Dimensions: H 7.66 in, W 2.77 in, D 7.36 in

Dimensions

Air Inlet Size (in.)

1/4 in

Product Depth (in.)

7.36 in

Product Height (in.)

7.66 in

Product Length (in.)

7.36 in

Product Width (in.)

2.77 in

Details

Drive Size (in.)

1/2 in

Hose Included

No

Housing Material

Composite

Impacts Per Minute

1050

Included

No additional components or accessories are included

Maximum Torque (ft.-lb.)

650

Returnable

90-Day

Tool Weight (lb.)

4.4 lb

Tools Product Type

Air Tool

Variable power settings

3

Warranty / Certifications

Manufacturer Warranty

3 Years

Questions & Answers

What is the breakaway torque?
ByJun 29, 2025
1 Answer | 
Answer This Question

Breakaway is between 900 and 1000 ft-lbs.

By|Jun 30, 2025


    Where does the oil go?
    ByMar 12, 2025
    1 Answer | 
    Answer This Question

    Air tool oil into the air inlet. When you connect the hose it will blow the oil through the motor. Oil several times a day an prior to putting the gun away.

    By|Aug 7, 2025

      (1)

      Is a Husky 6 Gallon 175 PSI Electric Pancake Air Compressor has enough power to operate the Husky 800 ft./lbs. 1/2 in. Impact Wrench
      ByDec 23, 2024
      1 Answer | 
      Answer This Question

      Only for a few seconds. 25 gallon required for continuous use.

      By|Sep 12, 2026

        (2)

        Who cares about forward torque what’s the torque in reverse to get the old bolts off?? That should be a spec on the box.
        ByDec 1, 2024
        1 Answer | 
        Answer This Question

        Dave- the torque rating on all impact is the maximum reverse torque.

        By|Oct 23, 2026

          (3)

          Does anyone know how to remove the exhaust deflector (silencer)
          ByNov 16, 2024
          1 Answer | 
          Answer This Question

          Not recommended and this will not improve the performance of the tool.

          By|Dec 10, 2024


            Would a 650 ft-lbs air Wrench with a 8 gal 90 PSI air compressor take off a nut on my small riding mower. To chg the blade
            BySep 6, 2024
            1 Answer | 
            Answer This Question

            Yes. Use a 3/8” hose and set your compressor regulator to 110 psi to allow for the pressure drop on the hose. You need 90 psi minimum AT THE TOOL. for maximum performance. After one or two blots the compressor will need to recharge. The recommend min compressor for this tool is 20 gallon.

            By|Oct 20, 2026

              (3)

              How big of an air compressor do you need to run this gun?
              ByMay 4, 2024
              1 Answer | 
              Answer This Question

              Warren- 15 gallon but 20+ is recommended for heavy work loads.

              By|Jan 26, 2025

                (1)

                I've owned one of these for a few months now. I was wondering what the lower torque output levels are? The max is 650 ft-lbs, what is the mid and low?
                ByApr 6, 2024
                1 Answer | 
                Answer This Question

                Ethan. Unfortunately, the torque gates, reduce the air pressure which will reduce the power and the speed of the tool. There are too many variables to determine an exact torque rating at each setting. This is consistent with any impact that you would buy.

                By|Apr 22, 2026

                  (1)

                  Viewing 1-8 of 47

                  Customer Reviews

                  4.2 out of 5

                  • 4.2 out of 404 reviews
                  • 78% recommend this product
                  Filter by:
                  Showing 1-10 of 404 reviews
                  Quick Work
                  This impact wrench made quick work of bolts that had 25 years of rust. Breaker bar didn’t work, breaker bar with 2’ black iron pipe extension didn’t work. Impact wrench had the bolts out in 3 seconds. Great product for the money!
                  by
                    • Recommended
                    Reliability
                    I work as a diesel mechanic and work on Semi trucks. I’ve done this job for a long time where bolts are constantly seized, those bolts are mostly all over 1” in size. I don’t always oil this gun and it seems to never give up. I’ve beaten this tool so much, dropped it, not oiled it. It refuses to give up. For the price, this tool will do most work a mechanic throws at it.
                    by
                      • Recommended
                      It works - Honda Crankbolt is No Match!
                      I recently did a timing belt change on my Honda Prelude. Honda crankbolts are notoriously hard to remove (180 ft-lbs of torque). On the Prelude, I broke an impact wrench, and had to use a 1/2" breaker bar and a 4' pipe. I tried that yesterday when changing the timing belt on my Ridgeline and broke two shoulders off the harmonic balancer and a socket. I went to Home Depot and purchased this gun. Add 3/8" fittings throughout, my Dewalt 15-gallon compressor (even though 20-gal is stated as the minimum), and a Lisle crank bolt socket, and this gun zipped the crank bolt loose in 20 seconds. Impressive! Worth the $114 I paid (3/29/20). I assume it will last if you keep it oiled and maintained properly.
                      by
                        • Recommended
                        8 found this review helpful
                        The impact worked real well. It took the axle nuts off my F350 4x4 front hubs/rotors easily. The ...
                        The impact worked real well. It took the axle nuts off my F350 4x4 front hubs/rotors easily. The hubs and rotors are assembled 2 piece with lug studs holding it together. Instead of pressing the studs into the hub, I used a lug nut to draw the studs through the rotor to assemble it to the hub. It did it quite easily. I did stop after every 2 studs to let the impact cool off and oil it. I was afraid I was working the impact to hard. I used a 3/4, 60ft. hose, with a 30gal, 3 1/2hp oil less compressor.
                        by
                          • Recommended
                          5 found this review helpful
                          Very well-built, and designed impact wrench. The control switch on the rear is easy to access, as...
                          Very well-built, and designed impact wrench. The control switch on the rear is easy to access, as well as the reversing knob. This impact wrench is very powerful, and still quiet.
                          by
                          • Verified Purchase
                          • Recommended
                          3 found this review helpful
                          My first pneumatic impact wrench, and it worked great for Subaru lower ball joint replacement, even while using a small compressor.
                          by
                          this drill was so easy to use
                          by
                          • Verified Purchase
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          Excellent product works well, have multiple vehicles that need tires changed and recently had to take the bed off my 2000 Dodge Dakota truck. This was very helpful in assisting with the project. Highly recommend and would buy again.
                          by
                          • Verified Purchase
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          Showing 1-10 of 404 reviews

                          Compare Key Features

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                          Product Snapshot

                          Built for pros: 650 ft-lbs. torque, low weight, quiet operation, and comfortable grip.
                          Built for pros: 800 ft-lbs. torque, reduced noise, lightweight design. Ideal for heavy-duty tasks.
                          Ideal for professionals needing high torque (550 ft-lbs) with reduced vibration and noise (82 dB) for comfortable extended use.
                          Built for pros: high-torque impact wrench with low vibration, noise, and weight. Ideal for heavy-duty use.

                          Torque Output

                          650 ft-lbs
                          800 ft-lbs
                          550 ft-lbs
                          950 ft-lbs

                          Air Consumption

                          5.0 CFM
                          4.0 CFM
                          8.0 CFM
                          8.0 CFM

                          Drive Size

                          1/2 in
                          1/2 in
                          1/2 in
                          1/2 in.

                          Impacts Per Minute (IPM)

                          1050 IPM
                          1700 IPM
                          1600 IPM
                          1400 IPM

                          Weight

                          4.4 lb
                          4.38 lb
                          2.8 lb
                          4.5 lb