Power Tools for Professionals



Spline 1-9/16 In. Combination Hammer

The Bosch RH540S Spline 1-9/16 In. Combination Hammer provides maximum productivity in all day drilling and chiseling applications. Equipped with 6.1 Ft.-Lbs. of impact energy (E.P.T.A.). The RH540S provides up to 39% more impact energy versus the previous model for best-in-class performance. The RH540S also provides variable speed. This delivers better bit control during application start-up.

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  • (1) RH540S Spline 1-9/16 In. Combination Hammer
  • (1) Auxiliary Handle
  • (1) Grease Tube
  • (1) Carrying Case


  • Spline bit system — accommodates all accessories with spline or 3/4 In. round hex shanks
  • Combination dual mode selector — selector knob allows the tool to be switched between rotary hammer mode or hammer only mode
  • Vario-Lock positioning — rotates and locks chisel into 12 different positions to optimize working angle
  • Innovative service modules — designed so a qualified service technician can quickly replace the brushes and cord
  • 360° Auxiliary handle — provides a wide range of movement along with operator comfort
  • Integral clutch — disengages torque transmission if the bit gets into a bind situation
  • Grounded design, CSA listed, complies to OSHA

Technical Data

Amperage 12.0
Chuck Design Keyless
Chuck Size 1-9/16 in
Height 10.5"
Impact Energy/EPTA (ft. lbs.) 6.1 Ft.-Lbs. EPTA
Length 19.0"
Material Metal, Plastic
Max. Hole Diameter in Concrete 1-9/16"
Max. Hole Diameter in Concrete-Core Bit 4"
Max. Hole Diameter in Concrete-Thru Hole Bit 2-1/2"
No Load BPM 1,500-2,900
No Load RPM 170-340
Optimal Concrete Capacity Range 1/2" - 1-3/8"
Rating 120V
Voltage 120V
Weight 15.0lb
Weight (lbs.) 15.0
Width 4.0"
Works With Dust Extraction/Collection Hoods
HDC200, HDC250, HDC300
Spline Drive to SDS-plus® Adapter
Includes (1) RH540S Spline 1-9/16 In. Combination Hammer, (1) Auxiliary Handle, (1) Grease Tube, (1) Carrying Case
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Owner's Manual


Accessories and Attachments For RH540S

Adapters and Chucks
Rotary Hammer & Hammer Drill Attachments
Round Hex / Spline Hammer Steel
Spline Hammer Carbide


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