Description
Airborne silica dust clouds trigger OSHA fines and pose severe respiratory health hazards during commercial concrete drilling. The Makita 40V max XGT 1-3/16in AVT Rotary Hammer Kit with Dust Extractor captures concrete dust directly at the hole collar. A 40-volt brushless motor delivers 2.9 foot-pounds of impact energy at 5000 blows per minute. Pushing bits beyond 1-3/16-inch solid diameter limits stalls the drive.
Die-cast magnesium gearcases house an air-cushioned striker mechanism supported by cylindrical roller bearings. Anti-Vibration Technology utilizes an internal counterbalance system that moves opposite the drive piston to cancel mechanical recoil. The onboard HEPA dust extractor mounts directly onto the hammer chassis, drawing vacuum power from an independent motor drive. Active Feedback-sensing Technology decouples the motor drive within milliseconds if the bit binds in rebar.
Rotary Hammer Dust Extractor Specs
Integrated HEPA vacuum attachments capture airborne silica dust to meet OSHA Table 1 compliance standards. Internal mechanical counterbalances cancel striker vibration before it reaches operator hand grips.
- 1.187-inch solid bit capacity cuts commercial structural anchor holes in reinforced slabs
- 2.9 foot-pounds of impact energy shatters high-strength concrete aggregate effortlessly
- 40-volt brushless motor platform maintains high drilling speed under continuous load
- Anti-Vibration Technology counterbalances cancel reciprocating shock inside the tool chassis
- Integrated HEPA dust extractor vacuums silica particles directly at the drill hole mouth
- Active Feedback-sensing Technology shuts down motor power instantly during bit snag events
- SDS-plus tool chuck permits rapid bit changes with single-hand pull-back collars
Hammer Dyno Bench Readings
Bench power analyzers track electrical current draw and impact energy across high-strength cured concrete. Running unloaded, the 40-volt battery draws 2.1 amperes, climbing to 18.6 amperes while driving a one-inch carbide bit. Battery terminal voltage drops from 40.2 volts down to 35.8 volts under peak hammering resistance. Striker cadence hits 5000 BPM under active load. Sound level meters read 91 dBA at the operator position. Gearcase temperatures rise 22 degrees Fahrenheit after twenty holes.
Field Service Operational Traps
Clogged HEPA filters choke vacuum suction and allow toxic silica dust into the air. Interior drywall installers hanging light pictures have no use for this heavy concrete drill. Never run the hammer without emptying full dust extractor canisters.
- Empty the dust extractor collection box before concrete powder reaches the fill line.
- Tap HEPA filter pleats clean over a trash bin after every twenty drilled holes.
- Grease SDS-plus bit shanks with high-pressure chisel lubricant before every work shift.
Commercial Warranty Package Inventory
Makita backs this rotary hammer kit with a 3-Year limited commercial warranty. The complete kit includes the 40-volt rotary hammer, onboard HEPA dust extractor, one 40-volt 4.0Ah battery, rapid charger, side handle, depth stop, and heavy carrying case.
