The Bosch RH540M-RT 1-9/16-Inch SDS-Max Combination Rotary Hamme delivers 6.1-feet blow energy for maximum productivity in all day drilling and chiseling applications. The concrete contractors will love working with this hard-hitting and versatile hammer. It uses the SDS-max bit system for easy bit changes and the Vario-Lock mechanism to position a bit for the best working angles, both of which make the tool more efficient, saving time and money. This is a Certified Refurbished product backed by a 90-day warranty.

Variable Speed Dial

A variable speed dial for both drilling and chiseling applications allows users to adjust tool settings based on the application and material they're tackling and a selector knob makes it easy to switch between hammer drilling, chiseling only, and the Varo-Lock function. 

Varo-Lock Mechanism

The Varo-Lock mechanism allows chisels to be rotated into 12 different positions to optimize working angles. The tools' new, robust design keeps it working hard on job sites. The RH540 tools both feature 12 amps and weigh just 14.2 pounds, delivering 1,200 to 2,750 blows per minute. The auxiliary handle rotates 360 degrees so the user can set it exactly where it will be the most operational to use and provides additional control and improved depth accuracy.

Adaptable and Effective

The Bosch RH540M Combination Hammer has a Combination Dual Mode Selector Knob allows the tool to be switched between rotary mode or hammer-only mode. This allows for controlled drilling and chiseling applications and precise hole placement. Service minder brushes on the tools also keep them running at maximum capacity, as the tools clearly indicate when preventive maintenance is required. Innovative service modules are designed to let a qualified service technician quickly replace the brushes and cord.

SDS-max and Integral Clutch Bring Convenience

Bosch's SDS-max allows for tool-free and one-handed bit changes, making the combo hammer even more versatile. The user twists the bit and pushes it until it clicks into place and locks automatically, and it's good to go. The system also provides dust protection and a maximum blow energy transfer rate. The tool's integral clutch disengages the torque transmission if the bit gets into a bind situation, protecting the tool and less fatigue for the user. Constant electronics provide a soft start and maintain constant speed under load – this also protects against an overload situation.