US
MILWAUKEE

Milwaukee 2658-20 M18 Impact Wrench 3/8 Inch

  • 167 foot pounds of torque
  • 18 volt battery operation
  • Fixed square head, socket end
  • 0.38 inch jaw capacity
  • Ratcheting, but not non-sparking
  • 5.75 inches long, 2.9 pounds
  • 5 year limited warranty

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A battery powered Milwaukee impact wrench with a ratcheting action and a fixed square head. The listing shows the tool alone, so a battery and charger are not confirmed.

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ASIN: B00I3PNJ7KModel: 2658-20Category: Impact Drivers & Wrenches

Overview

A mechanic or contractor gets a battery powered ratcheting impact wrench in this Milwaukee, with a socket end on a head that does not pivot. The body is alloy steel with a brushed finish and SAE inch sizing.

High torque from a battery tool means no hose or cord on the job, and ratcheting helps where a swing is limited. The limitation is that the included components name only the impact wrench, leaving the battery, charger and sockets unconfirmed.

Who it's for

Garage and field work without an air hose suits a battery tool, and the inch sizing matches SAE fasteners. People working near flammable vapor, or who need a complete kit with battery and charger, should look at a different listing.

Pros and cons

Pros
  • Cordless battery operation
  • High torque rating listed
  • Alloy steel construction
  • Extended limited warranty
Cons
  • Not rated non-sparking
  • Battery and charger not confirmed
  • SAE inch sizing only
  • Socket set not included

Performance notes

Torque comes from the battery driven motor and impact mechanism, so output depends on charge level and the condition of the fastener. The fixed square head takes sockets by drive size, so turning continues without repositioning the tool. Socket choice has to match the listed jaw capacity.

Specifications

BrandMILWAUKEE
Model2658-20
Dimensions & fit
Item Length5.75 Incheslower than 83% of 111 impact drivers & wrenches
Item weight2.9 Pounds
Capacity & performance
Jaw Capacity0.38 Incheslower than 85% of 56 impact drivers & wrenches
Power & efficiency
Voltage18 Volts
Construction & materials
Material TypeAlloy Steel
ColorRed
Finish TypesBrushed
Included components
Included ComponentsPower Impact Wrench
Unit Count1.0 Count
Warranty & support
Manufacturer Warranty Description5 Year Limited Warranty
Other details
Item Torque167 Foot Pounds
Head StyleFixed Square
Operation ModeBattery
Measurement StandardSAE (Inch)
End StyleSocket End
Is RachetingYes
Is Non SparkingNo

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Frequently asked questions

Is the Milwaukee 2658-20 non-sparking?

No. The listing marks non-sparking as No, so it is not meant for areas with flammable vapor.

Does the Milwaukee 2658-20 use metric or inch sizing?

The measurement standard is SAE (Inch).

Is the Milwaukee 2658-20 an impact wrench or a ratchet?

The included component is a Power Impact Wrench, and the listing marks ratcheting as yes.