Milwaukee 2457-21 Impact Review

Our scorecard

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

The Milwaukee 2457-21 is listed as a cordless, 12-volt impact ratchet kit with a published free speed of 250 RPM. That RPM figure, while on the lower end of what some pneumatic ratchets achieve, is consistent with a tool designed for controlled fastening in automotive and mechanical applications where you want deliberate speed rather than runaway torque. The included battery and charger make it a plug-and-play solution out of the box.

At $154.98, the 2457-21 costs roughly twice the bare tool (the 2457-20 at $78.00) but eliminates the separate battery purchase. For buyers outside the M12 ecosystem, the kit delivers better value. The 4.7-star average from 1,396 reviews edges above the bare tool's 4.6 stars, suggesting that buyers who receive a complete package report slightly higher overall satisfaction.

The listed total weight of 4.63 lbs reflects the tool with its battery and accessories included. That is heavier than what the bare tool alone would weigh, so the in-hand ratchet body itself is considerably lighter when compared to the combined kit weight. Monthly demand of 400 units confirms this is an active, in-production product with a live user base.

Specifications

Performance notes

The Milwaukee 2457-21 operates on 12 volts via the M12 cordless platform and delivers a listed free speed of 250 RPM. The published combined weight is 4.63 lbs, which includes the battery and charger in the kit. The ratchet body itself will be lighter in hand. As a cordless tool, it suits applications where air compressor access is unavailable or inconvenient. The 250 RPM speed is appropriate for precision fastening tasks in automotive maintenance and mechanical assembly.

What buyers say

Owners who purchase the 2457-21 kit tend to highlight the ready-to-use nature of the package as a primary benefit, especially first-time M12 buyers. The 4.7-star score suggests a high baseline satisfaction with tool build and practical performance. Some reviewers note that the kit weight figure can be misleading and encourage buyers to understand it represents the total package rather than the ratchet alone. A small number wish for higher RPM.