
DEWALT DW511
Score: 78/100
Bosch 1191VSR
Score: 82/100Rankings

The Bosch 1191VSRK is a lightweight, corded hammer drill offering an exceptional power-to-weight ratio with a 7 A motor and 48,000 BPM impact rate. Its single-speed operation and keyed chuck are trade-offs for its rugged durability and compact size. It is ideal for professional contractors needing a reliable tool for high-volume concrete drilling.

The DeWalt DW511 is a reliable corded hammer drill featuring a powerful 7.8 Amp motor and ergonomic design for heavy-duty masonry and construction tasks. Its main drawback is the corded design, which limits mobility and requires access to power outlets. It is best suited for professional contractors and DIYers working in areas with easy access to electricity.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 120 Vbest | |
7.8 Abest | 7 A | |
13 mmbest | 12.7 mm | |
— | 48,000 BPMbest | |
| ↓ lower better | 2.4 kg | 1.86 kgbest |
— | 15.88 mmbest | |
3,000 RPMbest | 3,000 RPMbest | |
1best | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Energy(1) | ||
Amperage (A) | 7.8 A | 7 A |
Chuck & Bits(1) | ||
Chuck Size (mm) | 13 mm | 12.7 mm |
Ergonomics & Design(2) | ||
Weight (kg) | 2.4 kg | 1.86 kg |
Handle Type | Side Handle | Auxiliary |
Features & Safety(1) | ||
Operating Modes | Drill/Hammer | Rotation, Hammer |

Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the DeWalt DW511 for its robust 7.8-8.5 Amp motor, which delivers high performance up to 3000 RPM, making it ideal for masonry and heavy-duty tasks. Editors note that while it is an older model lacking modern refinements like brushless motors, it remains a reliable choice for professionals who need consistent corded power without battery management concerns.
Everyday consumers frequently praise the drill's powerful performance in tough materials like concrete, noting its fast response and high RPM. Users appreciate the comfort provided by the side handle and trigger, as well as the value for heavy tasks. Common complaints focus on the limitations of the cord restricting mobility, the weight of certain variants feeling heavy overhead, and the outdated keyed chuck design.




Professional reviewers and editors highlight the Bosch 1191VSRK's outstanding performance-to-weight ratio and aggressive impact capabilities. It is positioned as a reliable, compact tool that outperforms competitors in power density.
Search results provide no specific user reviews, ratings details, or feedback quotes. While Home Depot lists a 3.9 rating, there is insufficient data to determine common praise or recurring themes from everyday users.