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Internet # 318061946

Model # GWT08Z

Store SKU # 1006669818

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40V max XGT Brushless Cordless 4-Speed Mid-Torque 1/2 in. Impact Wrench w/Detent Anvil (Tool Only)

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$379.00
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  • 40V impact wrench delivers up to 810 ft-lbs of nut-busting torque
  • 4 speeds for precise control
  • Auto-Stop modes 3 forward and 3 reverse for increased efficiency
  • View More Details

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Product Details

About This Product

The 40V max XGT Brushless Cordless 4-Speed Mid-Torque 1/2" Sq. Drive Impact Wrench with Detent Anvil (GWT08Z, tool only) provides improved fastening control, ideal for automotive, installation, and fabrication trades. The impact wrench combines extended run time and speed control for unmatched fastening performance. The GWT08Z is powered by a Makita-built motor for longer run time. The brushless motor delivers 560 ft.lbs. of Fastening Torque and 810 ft.lbs. of Nut-Busting Torque. The electronically controlled brushless motor efficiently uses energy to match torque and RPM to the changing demands of the application. Precise fastening control is achieved through the 4-speed power selection switch, which accounts for a wide range of applications. Additional precision features include three forward and three reverse rotation auto-stop modes, and a full-speed mode function that reduces the trigger pull to reach full speed. The GWT08Z features the exclusive Extreme Protection Technology (XPT), a protective seal inside the tool. It is designed to improve a tool's operation in harsh conditions by channeling water and dust from key internal components.

Highlights

  • OUTPOWER: Makita-built motor delivers 810 ft.lbs. of Nut-Busting Torque and 560 ft.lbs. of Fastening Torque
  • OUTSMART: 3 forward and 3 reverse Auto-Stop modes for increased efficiency
  • OUTLAST: XPT is engineered to provide increased dust and water resistance in harsh job site conditions
  • 4-speed power selection switch (0-600 / 0-1,200 / 0-1,900 / 0-2,300 RPM & 0-1,200 / 0-1,900 / 0-2,700 / 0-2,900 IPM) for a wide range of applications
  • Full speed mode function reduces trigger pull to reach full speed
  • Compact and ergonomic design at only 6-11/16"
  • Ultra-smooth variable speed trigger provides optimum control
  • Reinforced gear housing engineered for maximum job site durability
  • Flexible joint isolates the battery from the grip to help reduce wear on the battery contacts
  • The digital communication within XGT optimizes performance to provide up to 2X longer sustained power under heavy-load applications
  • The digital communication within XGT actively monitors and protects against overload, over-discharge and overheating
  • XGT Tools and Batteries are designed with a multi-layer contact interface for more constant power delivery to take on high-current demands
  • XGT Batteries feature rigid rails with impact-resistant construction to secure the battery to the tool during high-demand applications (batteries not included)
  • The XGT Rapid Charger with dual-fan design circulates air through the battery to cool the battery and circuit board quickly for faster charging (charger not included)
  • The XGT Rapid Charger's digital display indicates battery charge level (-80%, +80%, 100%)
  • The XGT Rapid Charger's built-in chip thoroughly communicates during the charging process to control current, voltage, and temperature for more efficient charging
  • Compatible with Makita 40V max XGT Lithium-Ion Batteries
  • Only use genuine Makita Batteries and Chargers
  • Click here to shop for more Makita products
  • Click here for more information on Electronic Recycling Programs
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Product Information

Internet # 318061946

Model # GWT08Z

Store SKU # 1006669818

Specifications

Dimensions: H 9.25 in, W 3.375 in, D 6.6875 in

Dimensions

Product Depth (in.)

6.6875 in

Product Height (in.)

9.25 in

Product Width (in.)

3.375 in

Details

Amperage (A)

0 A

Batteries Included

No

Battery Amp Hours

No Battery

Battery Power Type

Lithium Ion

Battery Size

40-volt

Battery Voltage (V)

40V

Charger Included

Charger Not Included

Color Family

Teal

Cordless Tool Type

Impact Wrench

Cordless/Corded

Cordless

Drive Size (in.)

1/2 in

Impacts Per Minute

2900

Included

Tool Only

Motor Type

Brushless

Number of Total Batteries Included

0

Power Tool Features

Cushioned Grip, Forward/Reverse Switch, Keyless Chuck, Variable Speed

Product Weight (lb.)

6 lb

Returnable

90-Day

Tools Product Type

Power Tool

Torque (ft-lbs)

810

Warranty / Certifications

Manufacturer Warranty

3-year limited warranty

Questions & Answers

What is detention anvil?
ByJan 6, 2025
1 Answer | 
Answer This Question

Thank you for your question about the GWT08D impact wrench. A detent anvil is an anvil/square drive that uses a pin to hod a socket onto the tool as opposed to using a friction ring.

By|Feb 24, 2026

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    Customer Reviews

    4.9 out of 5

    • 4.9 out of 22 reviews
    • 100% recommend this product
    Filter by:
    Showing 1-10 of 22 reviews
    Makita makes quality products
    I have been in the market for an impact driver for a while but finally had a reason to get one. I used this driver to replace a handful of rotten deck boards and drive the wood screws. This driver feels substantial and heavy in your hand. The torque it delivers is incredible. I have had other Makita tools in the past and have never been let down by their quality. This driver is no exception. The bag that comes with it is a nice add on. If you are looking for an impact driver this is a great choice.
    by
    • Recommended
    Huge power in a small package
    I have had several battery powered half inch impacts and this is the smallest and lightest that still has enough power to remove stubborn fasteners. Next to one of my other impacts the Makita is half as long and about half the weight. When you are using a tool all day weight matters. Also there is a pin instead of a friction ring to retain sockets which I prefer. Lastly the impact frequency is adjustable giving you more control over the force applied in use. Over all this is a fantastic tool and I find myself reaching for this one over my larger options.
    by
    • Recommended
    Great Power in a Compact Package
    The Makita 40v max XGT Brushless 1/2" Impact is a great tool to have in your garage or on the worksite. I have other 40V battery tools and wondered what the weight of this beast would be. I was surprised by the small size of this battery. They put a lot of power in a compact battery. What a great piece of equipment this tool is. It has plenty of torque and power for just about any job. We used it recently taking tires on and off a little Triumph. The ease of use and ability to switch out sockets was easy. Overall, this impact wrench is not much heavier than my 20V tools. I believe Makita has a winner with this one!
    by
    • Recommended
    Well-made and powerful tool
    Well-made and powerful tool. I have owned Makita tools for many years and they have yet to let me down. This impact wrench is part of Makita's new line of 40V tools. I have many of the 18V tools and I am happy with all of them. I even have one of their old 12V drills and it still works great. Despite being great tools, the new iterations still manage to sport improvements over their previous versions. This impact has incredible power. I cannot imagine a bolt you would encounter on any vehicle that this would not take off. 25 years ago, I would not have believed it would be possible to make a battery-powered impact wrench with this much power in such a compact design. This tool is absolutely incredible. The batteries charge in about 30 minutes with the included charger and last long enough that I have never run one until it was empty. The only negative thing that I might say about this tool is that the power selection and stop mode controls and displays are a little difficult to distinguish. I would imagine as I use it, it will become easier to control. This tool will drive and remove any bolt that a 1/2" socket is made for. If you need to drive 3/4" sockets, Makita makes a 3/4" version as well. I cannot imagine anyone being disappointed with this tool. Its performance and durability is unmatched. It is also well-balanced and comfortable to hold and use. I highly recommend this impact wrench.
    by
    • Recommended
    Amazing Makita!
    The Makita brand is proven and the one our family uses. The 40v Max XGT has brushless motors, and is cordless making any job easier. It has a 4-speed mid-torque with the 1/2 inch impact wrench kit with a detent anvil making it perfect for any fastening job. One battery ought to be enough for most jobs, but this set comes with two lithium ion batteries and a charger. All of it comes with a durable looking tool bag that holds all it and is easy to carry with two handles. My husband who is the one who uses it says it is very comfortable in his hand and easy to adjust the speed and torque.
    by
    • Recommended
    Another fantastic Makita Product
    I got this for my son who works on automobiles and motorcycles and he mentioned about needing to replace his current DeWalt Impact Wrench. He had heard about the 40V line of Makita Impact Wrenches so I thought I would get it for him. He loves it. I got the Makita XGT 1/2” Drive Impact wrench kit w/Detent. Model number GWT08D.. He wasn’t currently working on anything so he decided to use it to take a wheel off his truck at work and couldn’t believe how easy this wrench made that job. Easily took off the lug nuts, one had some rust on it and quickly reinstalled the lug nuts. The battery still had plenty of charge left. He does plan to use it when we rebuild our deck next month. He told me this wrench will make it a breeze to put the main part of the deck together The wrench has 3 forward and 3 reverse Auto-stop modes. It has 465 ft. lbs of torque and 260 ft.lbs of fastening torque. It’s quite powerful. It has a variable speed trigger that is easy to control. It has a four speed power selection switch. It comes with a 3-year limited warranty. He has several Makita tools and loves the performance and longevity of their tools. He said it was hands down that it’s a better wrench than his previous one.
    by
    • Recommended
    Omg
    Oh my goodness my husband was so beyond excited to open this gift up! He took his time opening up each item and inspecting each piece of this wonderful tool! He kept saying now I can tighten up all the lug nuts and loosen them all up when needed and all the other jobs he can do now that he has this magnificent tool. He honestly was like a little kid with all his excitement. What a great package to have put together because it really is all there and with the extra battery he won’t have to stop and wait for the battery to be charged. Great quality product, very very well made.
    by
    • Recommended
    Loosens lug nuts on my full size pickup no problem
    I'm reviewing a makita 40 V Max XGT brushless cordless four speed mid torque half inch impact wrench kit w/detent anvil 2.5 AH battery. First thing this is a well balanced beautiful tool it does have some weight to it at 5.6 pounds with a battery installed goes to show it's solid. It comes with 2 batteries and charger it charges from 20% up to 100% in one hour. It Has an included clip for hanging it. It easily took off lug nuts on my Toyota tundra pick up and retightened as well. It has four speeds allowing you to run bolts in without cross theading and settings to tighten somewhat smaller bolts without breaking them. Great tool nice addition to my tool box.
    by
    • Recommended
    POWERFUL; MULTIPLE SPEEDS AND MODES; MUCH MORE THAN A BASIC TORQUE WRENCH
    The Makita 40-Volt max XGT Brushless Cordless 4-Speed Mid-Torque 1/2 in. Impact Wrench Kit is an impressive, powerful torque wrench with accompanying accessories. It includes not one but two 40V batteries, a fast charger, a quality hook, and a first-class contractor’s bag. The fast charger charged each battery in approximately 25 minutes so basically one should have access to all day power with this tool. The tool has many helpful features such as both a bolt mode with three levels of power and an impact mode with four levels. For my testing in using it in bolt mode, I only needed the level one power from which I infer that it has an incredible potential to insert and remove bolts, especially rusted ones. A concern would be that too much power may break a bolt but it has a feature at least in bolt mode that should not allow it to over tighten and also slows or stopped the tool when removing a bolt so that it does not fall out of the socket. Unfortunately this forward and reverse auto-stop feature did not seem to work for me. The hook is easily secured to either the left or right side of the tool. The dual LED lights may be turned on or off. I don’t understand the need for this feature but maybe it saves battery power when using the torque wrench in bright light. The speed dial feature in the second row of symbols is not clearly explained. After pressing the mode button for a few seconds, the tool goes into full power mode, which can be used in both bolt and impact modes. When in full power mode, the square to the left of the speed dial mode is lit. Full power mode means that the trigger does not need to be pressed fully. The compact length is another appreciated feature. The contractor’s bag easily holds the torque wrench and accessories. It includes a shoulder strap in addition to handles for carrying. This cordless torque wrench is a significant upgrade from my previous torque wrench. I look forward to its power when driving large hex head screws into concrete. It should meet all of my torque wrench needs now and in the future. It has a 3-year limited warranty. It is made in China.
    by
    • Recommended
    1 found this review helpful
    Excellent battery impact wrench
    Makita 40-Volt max XGT Brushless Cordless 4-Speed Mid-Torque 1/2 in. Impact Wrench Kit w/Detent Anvil, 2.5Ah - This will be a great addition to the tool arsenal. One of my main uses of an impact wrench is to remove mower blades. And usually to give them an inititial tighten on reinstallation before torquing. Now it takes more time to drag out an extension cord and then coil it back up and re-store than the actual impact wrench operation. This is an excellent impact wrench with a few settings to make it more versatile and to aid in the prevention of overtighening or stripping bolts. The "headlight" has the option of being turned off. It got its first workout yesterday in removing so 5/8" fasteners. Worked flawlessly. A great tool. Comes with a canvas bag, 2 batteries and a charger.
    by
    • Recommended
    Showing 1-10 of 22 reviews

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    Product Snapshot

    Built for long-lasting durability and high performance in demanding job site conditions.
    Built for long-lasting durability and high performance in demanding fastening applications.
    Ideal for professionals needing powerful, versatile impact wrenches with advanced control and visibility.
    Built for long-lasting durability and high performance, delivering best power-to-weight ratio for professionals.

    Torque

    810 ft-lbs
    650 ft-lbs
    650 ft-lbs nut-busting
    650 ft. lbs. nut-busting

    Power Source Cordless

    Brushless Motor

    Impacts Per Minute (IPM)

    2900 IPM
    3100 IPM
    3, 100 IPM
    3100 IPM

    Battery Life

    More work per charge