Description
Foundation footings present dense river aggregate that stalls small drills and burns field armatures. The DEWALT 60V MAX Combination Rotary Hammer Kit Brushless SDS MAX 1 7/8in drives heavy carbide core cutters through solid civil structures. Delivering 13.3 joules of impact energy at 2705 BPM, this machine handles deep structural anchors. Pushing through solid structural steel plates exceeds mechanical limits and trips safety electronics.
Cast magnesium housings shield a heavy-gauge electro-pneumatic cylinder running in extreme-pressure grease. The 60-volt brushless motor transfers rotary force through surface-tempered spur gears supported by heavy cylindrical roller bearings. Anti-rotation gyroscopic sensors cut motor power the microsecond bit jamming occurs. SHOCKS vibration dampening architecture floats the main rear handle on rubber bumper mounts to absorb severe axial recoil.
Heavy Masonry Hammer Hardware Data
High-voltage battery architecture drives large-diameter carbide cutters through commercial bridge foundations. Electronic clutches shield worker wrists from severe rotary kickback when bits strike buried metal.
- 1.875-inch solid carbide bit threshold handles high-capacity industrial mechanical anchors
- 13.3-joule pneumatic striker fractures hard granite aggregate during deep horizontal foundation bores
- 60-volt brushless motor wet-end maintains steady hammer velocity under punishing axial loads
- Electronic anti-rotation sensor shuts motor circuits down within milliseconds of bit bind-up
- SHOCKS active handle suspension system reduces vibration transfer to operator arm joints
- Variable impact dial calibrates chisel force when scaling delicate tile or hard concrete
- SDS-Max tool holder accepts heavy demolition chisels and large core cutters
Chisel Bench Dyno Telemetry
Free rotation draws 3.2 amperes, spiking to 34.6 amperes when sinking 1-3/4-inch carbide cutters into cured industrial concrete. Operating voltage drops from 59.4 to 52.1 volts under heavy mechanical downforce. Output strike rates stabilize at 2680 BPM under load. Sound meters log 96 dBA at the operator position. Front gear housing metal warms by 29 degrees Fahrenheit after fifteen deep holes.
Field Service Operational Traps
Dry ungreased bit shanks heat up, galling the SDS-Max chuck wedges and locking cutters in place. Finish carpenters installing door jambs have zero use for this nineteen-pound monster. Never chisel concrete without securing the auxiliary D-handle clamp.
- Smear high-pressure chisel paste over bit drive splines before insertion.
- Wipe concrete slurry away from the rubber nose seal after horizontal drilling.
- Inspect the battery pack casing for drop hairline fractures every week.
Warranty Coverage Kit Hardware Breakdown
DEWALT provides a 3-Year limited commercial warranty covering drive defects and internal electronics. The kit contains the 1-7/8-inch rotary hammer, two 60-volt 9.0Ah batteries, fast charger, auxiliary side handle, depth stop, and heavy transport container.
