Milwaukee 2904-20 M18 Brushless Hammer Drill 1/2"
- Bare tool, battery not listed
- 1400 inch pounds of torque
- 1800 RPM, 2 speeds
- 1/2 inch chuck, 12.7 mm
- 0.5 inch metal drilling capacity
- 3 pounds, compact
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact cordless hammer drill with high listed torque, sold bare so the buyer supplies the battery. The listing does not state the voltage or a wood drilling capacity.
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ASIN: B07HP43TDYModel: 2904-20Category: Drills
Overview
Two speed settings and a half-inch chuck define this Milwaukee compact hammer drill, which runs from a separate battery. It is a steel-bodied tool with a hammer setting for tougher material.
The reason to buy is the strong torque and compact body for metal and tougher drilling. The limitation is that nothing else is in the box and the platform voltage is not stated.
Who it's for
Contractors and installers who own the battery system and want a compact hammer drill can use the bare form. Anyone starting from nothing should look at a kit that includes battery and charger.
Pros and cons
- High listed torque
- Two speed settings
- Battery and charger not in the box
- Voltage not stated
- Wood capacity not given
Performance notes
Torque and the two speed settings decide how well it handles large bits versus small, and hammer mode adds impacts for harder material. Battery size from the owner's stock affects runtime and weight. Chuck size limits shank diameter.
Specifications
| Brand | Milwaukee's |
|---|---|
| Model | 2904-20 |
| Dimensions & fit | |
| Maximum Chuck Size | 12.7 millimeters |
| Item weight | 3 pounds |
| Item Dimensions L X W X H | 3"L x 3"W x 3"H |
| Capacity & performance | |
| Maximum Rotational Speed | 1800 RPM |
| Drilling Capacity Metal | 0.5 inches |
| Number Of Speeds | 2 |
| Power & efficiency | |
| Power Source | Battery Powered |
| Maximum Power | 800 wattshigher than 51% of 129 drills |
| Construction & materials | |
| Material Type | Steel |
| Color | Red |
| Included components | |
| Included Components | Bare-Tool |
| Unit Count | 1.0 Count |
| Other details | |
| Drill Type | Hammer Drill |
| Maximum Torque | 1400 inch pounds |
| Additional Features | Compact |
| Is Electric | No |
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Frequently asked questions
Is the Milwaukee 2904-20 a full kit?
No.
What chuck size does the Milwaukee 2904-20 have?
12.7 millimeters, equal to half an inch.
Can the Milwaukee 2904-20 hammer?
Yes. It is listed as a hammer drill.