Bosch Rotary Hammer RH540S 1-9/16 Inch Spline Combination Tool (12A Motor 6.1 Ft-Lbs Impact 340 RPM 2900 BPM Concrete Drilling Demolition Chipping)

Bosch RH540S 1-9/16" Spline Combination Rotary Hammer

The Bosch RH540S 1-9/16-inch spline combination rotary hammer delivers heavy-duty drilling, core boring, and structural concrete chiseling powered by an industrial 12.0-amp motor generating 6.1 ft-lbs of EPTA impact energy. Featuring a dual-mode mechanical selector knob to switch between rotary hammering and hammer-only demo modes, this 15.0-lb corded tool operates at 170 to 340 RPM and 1,500 to 2,900 BPM. Outfitted with an integral mechanical safety slip clutch to protect against bit bind-ups, Vario-Lock 12-position chisel indexing, and a 360-degree auxiliary side handle, it optimizes speed and operator control during heavy rebar anchor setting, masonry scaling, and plumbing wall penetrations.

Best Used For:

• Reinforced Concrete Anchor Drilling: Boring clean 1/2-inch to 1-3/8-inch holes in solid foundation slabs and rebar-reinforced concrete for commercial structural anchors.
• Masonry Scaling and Demolition: Chipping away heavy tile mortar beds, leveling uneven concrete slabs, and channeling conduit troughs using the hammer-only mode.
• Large-Diameter Core Hole Penetrations: Driving carbide core bits up to 4 inches in diameter through poured concrete walls for electrical conduit and plumbing piping runs.

Key Performance & Safety Features

• High-Impact 12-Amp Motor: Produces 6.1 ft-lbs of EPTA impact energy for rapid material penetration and fast chiseling cycle times.
• Dual-Mode Functionality: Multifunction selector switches instantly between rotary hammer mode for drilling and hammer-only mode for chiseling and scaling.
• Integrated Safety Slip Clutch: Automatically disengages torque transmission if the drill bit binds in rebar to protect user wrists from violent rotational kickback.
• Vario-Lock 12-Position Indexing: Rotates and locks chisels into 12 distinct angular positions for an optimal ergonomic approach on walls and floors.
• Variable-Speed Electronic Control: Allows controlled soft starts to eliminate bit walking on polished concrete surfaces and maintain exact hole placement.
• Spline & Round-Hex Bit Receiver: Heavy-duty chuck interface accepts standard industrial spline drive bits as well as 3/4-inch round hex shank chisels.

What's Included

• (1) Bosch RH540S 1-9/16" Spline Combination Rotary Hammer
• (1) 360-Degree Auxiliary Side Handle
• (1) Tube of Spline Bit Lubricant Grease
• (1) Heavy-Duty Hard-Sided Carrying Case

Technical Specifications

Pro-Tip: Lightly coat your spline bit shanks with the supplied grease before inserting them into the chuck receiver; this prevents metal galling and extends the life of the internal striker mechanism during continuous high-impact demolition.