Bosch RH540M
Score: 92/100
DeWalt D25733K
Score: 92/100Rankings
The Bosch RH540M is a high-performance 12-amp corded SDS-Max rotary hammer designed for heavy-duty drilling and chiseling in concrete and masonry. It delivers class-leading 6.1 ft-lbs of impact energy, making it ideal for professional contractors requiring maximum power and durability in reinforced concrete applications. Best suited for professional contractors and demolition crews handling medium-to-heavy concrete work.
The DEWALT D25733K is a powerful mid-weight rotary hammer featuring a German-engineered mechanism that delivers 13.3 Joules of impact energy. Its primary trade-off is the significant weight, which can cause fatigue during extended handheld or overhead work. It is best suited for professional contractors handling mid-to-heavy concrete drilling and chipping tasks.
| Attribute | | |
|---|---|---|
6.1 joules | 13.3 joulesbest | |
| ↓ lower better | 6.89 kilogramsbest | 9.2 kilograms |
340 rpm | 355 rpmbest | |
2,900 bpmbest | 1,350 bpm | |
120 voltsbest | 120 voltsbest | |
12 watts | 15 wattsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Impact Energy (joules) | 6.1 joules | 13.3 joules |
No-Load Speed (rpm) | 340 rpm | 355 rpm |
Impact Rate (BPM) (bpm) | 2900 bpm | 1350-2705 bpm |
Design & Handling(3) | ||
Tool Weight (kilograms) | 6.89 kilograms | 9.2 kilograms |
Chuck Type | SDS-Max | SDS Max |
Handle Type | 360° Rotatable | Side Handle |
Power & Battery(1) | ||
Motor Power (watts) | 12.0 watts | 15 watts |
Features & Controls(3) | ||
Operating Modes | 2 | 3 Modes |
Trigger Type | Variable Speed | Variable |
Safety Features | Adjustable Clutch | E-Clutch |
General & Warranty(2) | ||
Warranty Period | 1 Year | null |
Included Accessories | Auxiliary handle, Carrying case | Hammer, side handle, kit box |
Products in the top-left offer the best value (high score, low price).
Professional reviewers from Pro Tool Reviews, ToolGuyd, and Concrete Construction praise the RH540M for its raw power and reliability. Experts highlight its 6.1 ft-lbs impact energy as superior to competitors like Hilti and Makita, resulting in significantly faster drilling speeds. The service-friendly design and robust 12-amp motor are also commended, though reviewers note it is not the lightest option available.
Everyday users and professionals on forums and retailer sites generally rate the tool highly for its power and durability. Common praise focuses on its ability to drill through tough, rebarred concrete and the protective benefits of its clutch system. Recurring complaints center on the tool's weight causing fatigue, the absence of dust collection, and the short power cord.
Professional reviewers praise the DEWALT D25733K for its category-leading 13.3 Joules of impact energy and ability to maintain constant speed under load in hard concrete. Editors specifically commend the E-Clutch for bind-up protection and the vibration control for enhancing productivity.
Everyday users commonly praise the tool's powerful impact for quickly penetrating tough concrete and the effective vibration reduction. However, recurring complaints focus on the weight causing arm strain during prolonged chipping or overhead work.
“Drills 1-9/16" holes in rebarred concrete like butter-6.1 ft-lbs is no joke”
“Variable speed prevents bit binding; clutch saved my wrist twice.”
“3 years daily abuse, still hammers at 2,900 BPM.”
