Features
Specifications
The Bosch RH540M 1-9/16" SDS-max® Combination Hammer is a combo rotary hammer and hammer-only tool designed for concrete contractors and professional remodelers who need a powerful and versatile tool. It delivers 6.1 Ft.-Lbs. of impact energy while weighing in at only 15.2 lbs. The motor is rated at 170 to 340 RPM in rotary mode and 1,200 to 2,750 BPM in hammer mode, which will easily reduce concrete to dust. Its SDS-Max® bit system allows tool-free and one-handed bit changes. The Vario-Lock mechanism lets users angle the chisel into 12 different positions to optimize the working angle. The hammer has a Dual Mode Selector Knob and service minder brushes, which clearly indicate when preventive maintenance is required.
Includes:
(1) RH540M SDS-max® 1-9/16 In. Combination Hammer
(1) Auxiliary Handle
(1) Grease Tube
(1) Carrying Case
- 6.1 Ft.-Lbs. of impact energy, up to 20 percent more than other combo rotary hammers
- SDS-max® bit system for tool-free easy bit changes
- Vario-Lock mechanism allows 12 positions for best chisel angle
- Combination dual mode selector knob rotary hammer mode or hammer-only mode
- Service minder brushes
- Innovative service modules
- Auxiliary handle and carrying case
| Brand | Bosch |
|---|---|
| Date Added | Mar 11, 2026 |
| UPC | 000346456127 |
| Package Length (in) | 4.00" |
| Package Width (in) | 19.00" |
| Package Height (in) | 10.50" |
| Manufacturer Part Number | RH540M |
| Amperage | 12A |
| Max. Blasts Per Minute | 2900 BPM |
| CSA Certified | Yes |
| Chisel Lock Positions | Yes |
| Chuck Design | Keyless |
| Chuck Size | SDS-Max |
| Color / Finish | Blue |
| Cord Length | 8 ft |
| Cordless / Corded | Corded |
| Core Bit Capacity | 4" |
| Country of Origin | China |
| ETL Listed | No |
| Electronic Speed Control | No |
| GTIN | 00000346456127 |
| Handle Type | D-Handle with soft grip |
| Height | 10.5" |
| Impact Energy | 6.1 Ft./Lbs. EPTA |
| Length | 19" |
| Material | Metal, Plastic |
| Max. Hole Diameter in Concrete-Thru Hole Bit | 2-1/2" |
| Maximum Concrete Cutting Capacity | 1.5625" |
| Maximum Metal Cutting Capacity | 0" |
| Maximum RPM | 340 |
| Net Tool Weight | 15.2 lbs |
| Optimal Concrete Capacity Range | 1/2" - 1-3/8" |
| Powered Tool Power Source | Electric - Corded |
| Reverse | No |
| Side Handle | Yes |
| Thin Wall Core Bit Capacity | No |
| Thru-Hole Capacity | 2.5" |
| Tool Storage | Case |
| Type of Modes | Rotary Hammer, Hammer Only |
| UL Listed | No |
| Variable Speed | Yes |
| Voltage | 120V |
| Weight | 15.2 lb |