If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 48 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
Mellif MFA1420-01 1100N.m Impact Wrench
Pairs well with
In stock! Ships within 3-5 business days.
90-day risk-free trial
5-Year Warranty
Complimentary shipping & returns
Mellif MFA1420-01 1100N.m Impact Wrench
Watch the Product Review
See how real users put the Mellif Wrench to the test. Watch hands-on demonstrations, performance reviews, and real-world hauling scenarios to find out if this impact wrench is the right investment for your projects.
DeWalt 18V/20V Battery Compatible
Works seamlessly with DeWalt 18V/20V batteries — use your existing battery platform and save the cost of buying additional batteries. (Battery and charger sold separately.)
MASSIVE 1,100 N·m TORQUE POWER
High-performance brushless motor delivers up to 1,100 N·m (800 ft·lb) of max torque, making it easy to remove stubborn bolts, rusted fasteners, and handle demanding automotive and construction tasks.
4-SPEED CONTROL FOR EVERY JOB
Choose from 0–800 / 1,200 / 1,800 / 2,200 RPM settings for precision fastening, repairs, and heavy-duty applications. LED indicators provide clear speed feedback.
INTUITIVE OPERATION & CLEAR SPEED CONTROL
The forward/reverse switch allows quick direction changes, while LED speed indicators make it easy to monitor your selected mode at a glance. Designed for precise control and efficient performance on every job.
BUILT FOR THE WORKSITE
Featuring a 1/2" square drive, safety brake, quick forward/reverse control, and rugged design with dust & water resistance — backed by a 5-year warranty for long-lasting reliability.
Product details
What's in the Box?
Everything you need to get started:
- 1 × Mellif Impact Wrench
- 1 × User Manual
Note: Batteries are not included.
Specifications
| Specification | Details |
|---|---|
| Model | MFA1420-01 |
| Battery Compatibility | Compatible with DEWALT 18V / 20V MAX Batteries (Battery & Charger Sold Separately) |
| Motor Type | Brushless Motor |
| Max Torque | Up to 1,100 N·m (≈800 ft·lb) |
| Speed Settings | 4-Speed Control |
| Speed Range | Level 0: 0–800 RPM Level 1: 0–1,200 RPM Level 2: 0–1,800 RPM Level 3: 0–2,200 RPM |
| Impact Rate | Up to 2,900 IPM |
| Chuck Size | 1/2" Square Drive |
| Control Features | Forward/Reverse Switch + LED Speed Indicators |
| Safety Features | Anti-Overtorque Brake |
| Design | Rugged Jobsite-Ready Design with Dust/Water Resistance |
| Applications | Automotive Repair, Construction, Heavy-Duty Fastening & Maintenance |
| Warranty | 5-Year Warranty |
User Manual PDF Download
-
FAQs
Will this impact wrench damage my dewalt batteries?
No. The wrench includes a built-in battery management and protection system that helps prevent over-discharge, over-current, and short circuits. When the battery reaches a low-voltage threshold, the system automatically stops operation to help protect your Dewalt batteries and maximize their lifespan.
Can this impact wrench remove rusted bolts?
Yes. With up to 1,100 N·m (800 ft·lb) of max torque and a powerful impact mechanism delivering up to 2,900 IPM, this impact wrench is designed to help break loose stubborn, over-tightened, and rusted fasteners. It’s ideal for automotive repairs, workshop maintenance, and heavy-duty fastening jobs where extra power is needed.
How many speed settings does this impact wrench have?
The impact wrench features 4-speed control settings, allowing you to adjust the power and speed for different tasks. Lower speeds provide better control for delicate fastening and smaller bolts, while higher speeds deliver maximum power for heavy-duty applications. This helps reduce the risk of over-tightening and gives you more control over every job.
Can this impact wrench be used for changing car tires?
Yes. With up to 1,100 N·m (800 ft·lb) of max torque and a standard 1/2" square drive, this impact wrench is ideal for automotive tasks like removing and installing lug nuts. It helps make tire changes faster and easier, especially when dealing with tight or over-torqued bolts.
What does 1/2" drive mean? What size sockets does it use?
A 1/2" drive refers to the size of the square drive an impact wrench uses to attach sockets. It is one of the most common sizes for automotive and heavy-duty applications, allowing you to use a wide range of 1/2" drive impact sockets for tasks like changing tires, repairing vehicles, and fastening large bolts.
What does the 5-year warranty cover?
Our 5-year warranty covers defects in materials and workmanship under normal use. This includes issues such as motor failures, electrical component defects, and product malfunctions caused by manufacturing problems.
The warranty does not cover normal wear-and-tear parts, such as blades, brushes, filters, seals, or other consumable components that naturally wear out during use. Damage caused by misuse, accidents, improper maintenance, or unauthorized modifications is also not covered.
If you experience any product issues, please contact us with your order information and product details, and our support team will be happy to assist you.