Description
Vibration fatigue from standard rotary hammers slows crew productivity during all-day anchor installation on commercial job sites. The Bosch 18V PROFACTOR Hitman SDS Max 1 9/16in Rotary Hammer Kit delivers corded-equivalent demolition and drilling power without user fatigue. An 18-volt brushless motor generates 5.2 foot-pounds of impact energy. 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 unit 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.
Hitman Rotary Hammer Hardware Specs
Electro-pneumatic strikers deliver 5.2 foot-pounds of impact energy for rapid anchor hole production. Electronic KickBack Control decouples the motor drive instantly if bits snag on embedded rebar.
- 1.562-inch solid bit capacity cuts heavy structural anchor holes through cured commercial concrete
- 5.2 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
- Two-mode selector switch chooses rotary hammer drilling or hammer-only chiseling operations
- SDS-max drive chuck locks large core bits and demolition chisels securely without slip
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 1-1/2-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 93 dBA at operator ear level. Front gearcase temperatures climb 26 degrees Fahrenheit after fifteen holes.
Field Service Operational Traps
Abrasive dust ruins SDS-max 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-max 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 kit with a 1-Year commercial warranty against material defects. The complete kit includes the 1-9/16-inch SDS-max rotary hammer, two 18-volt 8.0Ah batteries, rapid charger, auxiliary side handle, depth stop, and hard case.