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Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact vs Milwaukee M18 FUEL 18V Lithium-Ion Brushless

Updated August 2026 — Milwaukee M18 FUEL 18V Lithium-Ion Brushless leads on runtime and features.

The Milwaukee M18 FUEL offers superior power and features, making it the better choice for heavy-duty applications, while the Milwaukee 2864-20 is more budget-friendly for general use.

Why Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact is better

Price

Milwaukee 2864-20 is significantly cheaper at $319.99.

Compact Size

Milwaukee 2864-20 is more compact at 8.59 inches.

Weight

Milwaukee 2864-20 weighs 8 pounds, making it easier to handle.

Why Milwaukee M18 FUEL 18V Lithium-Ion Brushless is better

Power

Milwaukee M18 FUEL delivers 2,000 ft-lbs of nut-busting torque.

Runtime

Milwaukee M18 FUEL can remove/install up to 120 lug nuts on a single charge.

Advanced Features

Milwaukee M18 FUEL includes Lug Nut Mode and 4-mode drive control.

Overall score

Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact
75
Milwaukee M18 FUEL 18V Lithium-Ion Brushless
90

Specifications

SpecMilwaukee 2864-20 Fuel One-Key 3/4" High Torque ImpactMilwaukee M18 FUEL 18V Lithium-Ion Brushless
ASINB07BQKRQCPB0CFGBLRY1
Fastening Torque1200 ft-lbs1900 ft-lbs
Nut-Busting Torque1500 ft-lbs2000 ft-lbs
Battery TypeBare Tool2 x 12.0 Ah
Drive ControlONE-KEY4-mode

Dimension comparison

Milwaukee 2864-20 Fuel One-Key 3/4" High Torque ImpactMilwaukee M18 FUEL 18V Lithium-Ion Brushless

Overview of the Products

In this comparison, we will review the Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact and the Milwaukee M18 FUEL 18V Lithium-Ion Brushless Cordless 1 in. Impact Wrench. The Milwaukee 2864-20 is priced at $319.99, while the M18 FUEL model comes in at $1,268.99, making it about 297% more expensive. Both tools are designed for high torque applications and are equipped with advanced features, but they cater to different user needs and budgets.

Power and Performance

When it comes to power, the Milwaukee M18 FUEL stands out with a remarkable 2,000 ft-lbs of nut-busting torque, compared to the 2864-20's impressive 1,500 ft-lbs. This substantial torque difference makes the M18 FUEL the world's most powerful cordless impact wrench, ideal for heavy-duty tasks. The 2864-20 still offers strong performance with a 1,200 ft-lbs fastening torque, making it suitable for most applications without the need for the extreme capabilities of the M18 FUEL.

Design and Build Quality

Both products exhibit Milwaukee's high standards in design and build quality. The Milwaukee 2864-20 is compact at 8.59 inches in length, making it one of the most compact high torque impact wrenches available. In contrast, the M18 FUEL features a D-handle design that provides additional leverage, which may be beneficial in tightly confined spaces. The M18 FUEL also includes a battery isolation system that helps manage vibrations, ensuring a constant connection between the battery and the tool, enhancing its durability during heavy use.

Battery and Runtime

The Milwaukee 2864-20 is sold as a bare tool, meaning it does not include a battery or charger, which can be a drawback for users needing a complete kit. On the other hand, the Milwaukee M18 FUEL comes with two 12.0 Ah batteries, allowing users to remove and install up to 120 lug nuts on a single charge. This extended runtime can significantly improve productivity, especially in professional settings where downtime must be minimized.

Features and Technology

The M18 FUEL is equipped with several advanced features, including the ONE-KEY technology that enables users to customize and track the tool's performance. It also includes a Lug Nut Mode, which prevents over-torque, providing more control during use. The Milwaukee 2864-20 has similar ONE-KEY compatibility, allowing for customization and performance management, but lacks some of the additional modes found in the M18 FUEL. The enhanced control options in the M18 FUEL may justify its higher price for professionals requiring precision.

Weight and Portability

Weighing in at 8 pounds, the Milwaukee 2864-20 is designed for portability and ease of handling. Its compact size makes it easier to maneuver in tight spaces. In comparison, the Milwaukee M18 FUEL is heavier due to its added features and larger battery packs. While its weight may be a consideration for some users, the additional power and capabilities could outweigh this factor for those needing a robust tool for demanding applications.

Pricing and Value

The Milwaukee 2864-20, at $319.99, is significantly more budget-friendly compared to the Milwaukee M18 FUEL, which is priced at $1,268.99. This makes the 2864-20 about 75% cheaper than its counterpart. For users who require a reliable impact wrench for general use, the 2864-20 offers excellent value. However, for those in need of the highest torque and advanced features, the M18 FUEL may justify its cost with enhanced performance and longer runtime.

Which should you buy?

Choosing between the Milwaukee 2864-20 and the Milwaukee M18 FUEL ultimately depends on your specific needs and budget. If you’re looking for a powerful, compact tool for general applications at an affordable price, the Milwaukee 2864-20 is an excellent choice. However, if you require the most powerful cordless impact wrench with advanced features and extended runtime, the Milwaukee M18 FUEL is worth the investment. Both tools are backed by Milwaukee's reputation for quality, ensuring reliability regardless of your choice.

Milwaukee 2864-20 Fuel One-Key 3/4" High Torque Impact (Bare) vs Milwaukee M18 FUEL 18V Lithium-Ion Brushless Cordless 1 in. Impact Wrench Extended Reach D-Handle Kit w/Two 12.0 Ah Batteries | versusfinder