Description
Underpowered rotary hammers smoke and stall when drilling massive two-inch holes through bridge abutments and foundation footers. The DEWALT 2in SDS MAX Rotary Hammer delivers 19.4 joules of impact energy to crush heavy structural concrete. A 15-ampere motor generates 2210 blows per minute for deep foundation drilling. Running SDS-max bits into heavy solid steel beams will trigger electronic clutches.
Die-cast magnesium gearcases house an air-cushioned striker mechanism running inside sealed grease chambers. The motor wet-end features dual-insulated copper field coils and high-grade carbon brushes that deliver continuous cutting torque under severe masonry friction. SHOCKS Active Vibration Control handles decouple mechanical hammer shock from technician palms. Electronic anti-rotation systems cut power within milliseconds if the bit catches on structural rebar.
SDS-Max Rotary Hammer Specs
Air-cushioned striker mechanisms deliver 19.4 joules of impact energy directly to SDS-max drill bits. Active Vibration Control suspension handles isolate technician hands from mechanical recoil.
- 2.0-inch solid bit capacity cuts deep structural anchor holes in reinforced concrete
- 19.4 joules of impact energy pulverizes hard aggregate with minimal operator downforce
- 15-ampere 120-volt motor delivers 2210 blows per minute for rapid anchor hole production
- SHOCKS Active Vibration Control handle decouples mechanical hammer shock from technician palms
- Anti-rotation system cuts motor power instantly during sudden bit bind-up to protect wrists
- Two-mode selector switch chooses rotary hammer drilling or hammer-only chiseling operations
- SDS-max tool chuck locks large core bits and demolition chisels securely without slip
Pneumatic Hammer Bench Telemetry
Bench testing monitors electric current and impact stroke cadence through cured 5000 PSI concrete. Free motor rotation draws 3.8 amperes at 120 volts, surging to 14.8 amperes while driving a two-inch carbide bit. Spindle rotation drops from 220 RPM free speed down to 185 RPM under heavy downforce. Striker cadence hits 2210 BPM under active load. Sound level meters read 96 dBA at operator ear level. Gearcase exterior temperatures climb 28 degrees Fahrenheit after fifteen holes.
Field Service Operational Traps
Neglecting bit shank grease causes high-friction galling that seizes expensive SDS-max bits inside the chuck. Finish carpenters installing cabinets have no need for this heavy masonry hammer. Never operate the hammer mechanism without applying firm forward contact pressure.
- Grease bit shanks with high-temperature chisel paste before inserting into the chuck.
- Wipe concrete dust off the rubber chuck nose cone after every shift.
- Clean power cord insulation jackets using solvent wipes to inspect for wire cuts.
Commercial Warranty Package Inventory
DEWALT covers this rotary hammer with a 3-Year limited commercial warranty on tool components. The package includes the 2-inch SDS-max rotary hammer, 360-degree auxiliary side handle, depth stop rod, and heavy kit box.
