Bosch Bulldog Xtreme Max
Score: 88/100
Milwaukee M18 Fuel
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 2915-20 is a high-performance cordless rotary hammer delivering class-leading 3.6 ft-lbs of impact energy with an AVS anti-vibration system. Its main trade-off is the heavy weight and the necessity of purchasing premium batteries separately to achieve peak output. It is best suited for professional contractors needing cordless versatility for medium-duty concrete work up to 1-1/8 inch bits.
| Attribute | | |
|---|---|---|
3.25 joules | 3.6 joulesbest | |
| ↓ lower better | 6.4 kilogramsbest | 8.65 kilograms |
1,300 rpmbest | 800 rpm | |
5,100 bpmbest | 4,600 bpm | |
120 voltsbest | 18 volts | |
850 wattsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Impact Energy (joules) | 3.25 joules | 3.6 joules |
No-Load Speed (rpm) | 1300 rpm | 800 rpm |
Impact Rate (BPM) (bpm) | 5100 bpm | 4600 bpm |
Design & Handling(3) | ||
Tool Weight (kilograms) | 6.4 kilograms | 8.65 kilograms |
Chuck Type | SDS-plus | SDS-Plus |
Handle Type | D-Handle | In-line D-Handle |
Power & Battery(3) | ||
Voltage (volts) | 120 volts | 18 volts |
Power Source | Corded | Cordless |
Motor Power (watts) | 850 watts | Unknown watts |
Features & Controls(2) | ||
Operating Modes | 3 Modes | 3 |
Safety Features | KickBack Control | AUTOSTOP, REDLINK PLUS |
General & Warranty(2) | ||
Warranty Period | 1 Year | 5 Years |
Included Accessories | Auxiliary Handle, Depth Gauge, Carrying Case | Depth rod, side handle |
Products in the top-left offer the best value (high score, low price).
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.
Professional reviewers and editors characterize the Milwaukee 2915-20 as the next generation of cordless rotary hammers, praising its class-leading 3.6 ft-lbs impact energy and speed.
Everyday users and implied feedback indicate strong satisfaction with the tool's power and speed for concrete applications.
