Description
Vibration fatigue from standard rotary hammers slows crew productivity during all-day anchor installation on commercial job sites. The Bosch PROFACTOR 18V Rotary Hammer bare tool delivers 4.3 foot-pounds of impact energy to drill structural concrete rapidly. An 18-volt brushless motor generates up to 2900 blows per minute. Jamming large core bits into hard river rock aggregate will stall the hammer mechanism.
Die-cast magnesium gear housings enclose an electro-pneumatic hammer piston and striker assembly mounted in heavy needle bearings. The brushless motor wet-end features dual-bearing rotor supports and high-flux magnets that maintain steady torque under load. Counter-balanced vibration dampening mechanisms inside the rear handle isolate technician hands from mechanical recoil. KickBack Control accelerometers decouple motor drive within milliseconds when drill bits catch on structural rebar.
Rotary Hammer Bare Tool Specs
Electro-pneumatic strikers deliver 4.3 foot-pounds of impact energy for rapid anchor hole production. Electronic KickBack Control decouples the motor drive instantly if bits snag on embedded rebar.
- 1.25-inch drilling capacity cuts structural anchor holes through cured commercial concrete
- 4.3 foot-pounds of impact energy smashes hard aggregate without operator fatigue
- Brushless 18-volt motor platform provides high impact cadence with low battery power drain
- Vibration Control suspension handles absorb reciprocating shock to protect worker joints
- KickBack Control accelerometer cuts motor drive instantly during sudden bit snag events
- Three-mode selector dial switches between drilling, hammer drilling, and chiseling modes
- Integrated depth gauge rod sets repeatable hole depths for drop-in anchor installations
Hammer Dyno Bench Readings
Dyno bench instruments evaluate electrical current draw and impact energy during concrete penetration. Unloaded motor rotation draws 2.6 amperes, surging to 32.4 amperes while drilling 1-1/4-inch holes in high-strength concrete. Pack voltage drops from 18.2 volts to 15.6 volts under continuous hammering. Striker cadence hits 2900 BPM under active load. Sound meters record 92 dBA at operator ear level. Front gearcase temperatures climb 26 degrees Fahrenheit after fifteen holes.
Field Service Operational Traps
Abrasive dust ruins SDS-plus chuck locking balls if operators insert dry, ungreased bit shanks. Finish carpenters installing cabinets have no need for this heavy masonry hammer. Never operate the hammer mechanism without applying firm forward contact pressure.
- Put a dab of grease on bit shanks before inserting them into the SDS-plus chuck.
- Wipe abrasive dust off the front chuck rubber seal sleeve after every work shift.
- Blow dry compressed air through motor intake grilles every forty hours of use.
Commercial Warranty Package Inventory
Bosch protects this rotary hammer bare tool with a 1-Year commercial warranty against material defects. The bare-tool package includes the 1-1/4-inch rotary hammer bare tool, depth stop rod, auxiliary side handle, and operator instruction manual.