
Milwaukee Cordless Rotary Hammer
Score: 82/100
Bosch Bulldog Xtreme Max
Score: 88/100Rankings

The Bosch GBH2-28L is a lightweight, corded SDS-plus rotary hammer designed for drilling, hammer drilling, and chiseling in concrete and masonry. Its primary limitation is the mandatory 5-hour break-in period required for optimal power. It is best suited for trade professionals needing a lightweight, high-power tool for daily concrete and masonry work.

The Milwaukee 2712-20 is a lightweight, cordless SDS-Plus rotary hammer featuring an AVS anti-vibration system and brushless motor. Its main limitation is the lower impact energy compared to larger models and the need for separate dust extraction accessories. It is best suited for professionals needing portable concrete work with reduced vibration.
| Attribute | ![]() | ![]() |
|---|---|---|
1.7 joules | 3.25 joulesbest | |
| ↓ lower better | 3.14 kilogramsbest | 6.4 kilograms |
1,330 rpmbest | 1,300 rpm | |
4,800 bpm | 5,100 bpmbest | |
18 volts | 120 voltsbest | |
8 watts | 850 wattsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Impact Energy (joules) | 1.7 joules | 3.25 joules |
No-Load Speed (rpm) | 1330 rpm | 1300 rpm |
Impact Rate (BPM) (bpm) | 4800 bpm | 5100 bpm |
Design & Handling(3) | ||
Tool Weight (kilograms) | 3.14 kilograms | 6.4 kilograms |
Chuck Type | SDS-Plus | SDS-plus |
Handle Type | Unknown | D-Handle |
Power & Battery(3) | ||
Voltage (volts) | 18 volts | 120 volts |
Power Source | Cordless | Corded |
Motor Power (watts) | 8 watts | 850 watts |
Features & Controls(2) | ||
Operating Modes | 3 | 3 Modes |
Safety Features | AUTOSTOP, REDLINK PLUS | KickBack Control |
General & Warranty(2) | ||
Warranty Period | 5 Years | 1 Year |
Included Accessories | Side handle, depth rod | Auxiliary Handle, Depth Gauge, Carrying Case |


Professional reviewers praise the Milwaukee M18 FUEL line for delivering cordless performance that rivals corded tools, with the 1-1/8" model specifically highlighted as game-changing for jobsite mobility.
Everyday users consistently praise the power, speed, and battery life of the Milwaukee rotary hammers, noting they can drill dozens of holes per charge.

“fastest in class”

“game-changing for jobsite mobility”




Professional reviewers praise the Bosch GBH2-28L as a 'legendary Bulldog' built for tough jobsites, highlighting its impressive 5,100 BPM and 1,300 RPM in a lightweight 6.9 lb package. Experts emphasize its exclusive features like KickBack Control and vibration control.
Everyday users commonly praise the tool's robust performance in heavy-duty applications, noting the comfortable D-handle and low vibration levels. However, recurring complaints focus on the mandatory 5-hour break-in period required for optimal power.