Bosch RH540M SDS-max 1-9/16" Combination Hammer (12 Amp Corded)

The Bosch RH540M SDS-max 1-9/16" Combination Hammer is a corded 12-amp rotary hammer built for heavy-duty drilling and chipping in concrete and masonry. With 6.1 ft-lbs of impact energy — up to 20% more than competing combo hammers — and a dual-mode selector for rotary or hammer-only operation, the RH540M is a workhorse for concrete contractors, electricians, plumbers, and demolition crews handling serious masonry work.

Key Features & Benefits

• 6.1 ft-lbs of Impact Energy (EPTA): Best-in-class power delivers up to 20% more impact than competing combo rotary hammers — break through tough concrete faster.
• Dual-Mode Selector: Switch between rotary hammer mode for drilling and hammer-only mode for chipping and chiseling — one tool for two jobs.
• Vario-Lock Mechanism (12 Positions): Lock the chisel at any of 12 angles for the optimal cutting position — critical for overhead, awkward, and tight-space work.
• SDS-max Bit System: Tool-free bit changes save time on the job — no chuck key required.
• Variable Speed Trigger: Dial in 170–340 RPM and 1,500–2,900 BPM for precise control across applications.
• Service Minder Brushes: LED indicator alerts you when brushes need replacement — prevents unexpected downtime.
• Innovative Service Modules: Easily replaceable brushes and modules extend tool life and minimize service costs.
• Dust Extraction Compatible: Works with Bosch HDC200, HDC250, HDC300, HA1030, HA1031, and HA1032 dust collection systems — helps meet OSHA silica dust requirements (29 CFR 1926.1153).

Drilling & Chiseling Capacity

• Max Bit Diameter: 1-9/16"
• Max Hole Diameter in Concrete: 1-9/16"
• Max Hole Diameter with Core Bit: 4"
• Max Hole Diameter with Thru-Hole Bit: 2-1/2"
• Optimal Concrete Capacity Range: 1/2" – 1-3/8"

Specifications

• Model / SKU: Bosch RH540M
• Drive System: SDS-max
• Power Source: Corded 120V
• Amperage: 12 A
• Impact Energy (EPTA): 6.1 ft-lbs
• No-Load Speed: 170–340 RPM
• Blows Per Minute (BPM): 1,500–2,900
• Variable Speed: Yes
• Chuck Design: Keyless SDS-max
• Chuck Size: 1-9/16"
• Dimensions (L × W × H): 19" × 4" × 10.5"
• Weight: 15.2 lbs

What's Included

• (1) Bosch RH540M SDS-max 1-9/16" Combination Hammer
• (1) Auxiliary Side Handle
• (1) Grease Tube
• (1) Carrying Case

Common Applications

• Concrete Drilling: Anchor holes, rebar holes, structural drilling
• Demolition & Chipping: Breaking concrete slabs, chipping mortar, removing tile
• Electrical & Plumbing: Drilling through concrete walls and floors for conduit and pipe runs
• Renovation & Remodeling: Removing brick, stone, and masonry features

Buy the Bosch RH540M Combination Hammer in Houston & San Antonio, TX

Tool Mart is your trusted Texas source for Bosch rotary hammers and professional concrete drilling equipment. Order the Bosch RH540M online for same-day pickup at our Houston or San Antonio retail locations, or request fast local delivery to your job site. We support concrete contractors, electricians, plumbers, and demolition crews across the Houston metro area with stocked inventory, SDS-max bits and chisels, and dust extraction systems for OSHA-compliant masonry work.

Need SDS-max bits, chisels, or a compatible dust extractor? Call our Houston store or visit us in person — our team is happy to help.