Description
Milwaukee M18 FUEL™ STRIKER™ Cordless Hammer Chisel Kit – 3771-21
Take on demanding automotive repair jobs with the Milwaukee M18 FUEL™ STRIKER™ Hammer Chisel Kit (3771-21). Designed for professional automotive service technicians, this powerful cordless hammer chisel delivers 7 joules of striking force comparable to leading long-barrel pneumatic tools operating at 145 PSI — without the need for an air compressor or hose.
Powered by Milwaukee's POWERSTATE™ Brushless Motor, the STRIKER™ delivers the performance and precision needed for suspension teardown, ball joint removal, tie rod separation, control arm repairs and other challenging automotive applications.
Featuring a variable-speed trigger and three operating modes, this tool gives technicians precise control over striking speed up to 3,000 blows per minute (BPM). The .401" round shank twist-lock chuck allows fast, convenient chisel bit changes, while REDLINK PLUS™ Intelligence helps protect the tool and battery from overload.
Part of the Milwaukee M18™ cordless system, the STRIKER™ is compatible with all M18™ REDLITHIUM™ batteries and chargers.
Key Features
- 7 Joules of Striking Force: Delivers powerful impact performance comparable to long-barrel pneumatic hammer chisels at 145 PSI.
- POWERSTATE™ Brushless Motor: Provides efficient, durable performance for demanding automotive service applications.
- 3 Operating Modes: Choose from multiple striking speeds and a ramp-up mode for improved control.
- Variable-Speed Trigger: Precisely control striking speed from 0–3,000 BPM.
- Cordless Convenience: Work without an air compressor or pneumatic hose.
- .401" Round Shank Twist-Lock Chuck: Enables quick, easy and secure chisel bit changes.
- REDLINK PLUS™ Intelligence: Helps protect against overload, overheating and over-discharge.
- Patented Battery Isolation System: Reduces vibration and maintains a secure battery connection.
- Integrated LED Work Light: Illuminates the work area for improved visibility.
- M18™ System Compatibility: Works with all Milwaukee M18™ REDLITHIUM™ batteries and chargers.
Kit Includes
- (1) M18 FUEL™ STRIKER™ Hammer Chisel (3771-20)
- (1) M18 REDLITHIUM™ HIGH OUTPUT XC5.0 Resistant Battery
- (1) M18™ & M12™ Battery Charger
- (1) Hammer Chisel Bit
- (1) Flat Chisel Bit
Specifications
| Brand | Milwaukee |
| Model | 3771-21 |
| Product Series | M18 FUEL™ |
| Tool Type | Cordless Hammer Chisel |
| Voltage | 18V |
| Impact Energy | 7 Joules |
| Blows Per Minute | 0–3,000 BPM |
| Operating Modes | 3 |
| Variable Speed | Yes |
| Chuck Type | .401" Round Shank Twist-Lock |
| Motor | POWERSTATE™ Brushless |
| Work Light | Integrated LED |
| Battery Platform | Milwaukee M18™ |
| Warranty | 3-Year Tool Warranty |
Frequently Asked Questions
Does this tool hit as hard as an air hammer?
Yes. The Milwaukee M18 FUEL STRIKER produces 7 Joules of impact energy, matching the hitting force and removal speed of a commercial long-barrel pneumatic air hammer operating at 145 PSI shop pressure.
Can I use my existing air hammer bits with this tool?
Yes. The tool features an industry-standard .401" round shank twist-lock chuck, making it fully compatible with your standard .401" air hammer chisels, punches, hammer heads, and ball joint separators.
How does the battery withstand heavy impact vibrations?
Milwaukee engineered a patented battery isolation cradle into the handle. This system mechanically isolates the battery terminals from the hammer mechanism, absorbing vibration energy so the battery won't vibrate loose or damage its contacts.
What is the benefit of the 3-mode selector?
Mode 1 caps striking speed at 2,500 BPM for delicate punch work; Mode 2 unleashes maximum speed up to 3,000 BPM for high-speed demolition; and Mode 3 provides a smart ramp-up starting slow to seat the bit before accelerating to full power.
What makes the included battery "Resistant"?
The kit comes with an M18 REDLITHIUM XC5.0 Resistant Battery (48-11-1855R), featuring a specialized housing material that resists corrosive shop fluids, brake cleaners, motor oils, and automotive solvents without cracking.
Product Specifications
category_bullets: |
M18 FUEL STRIKER cordless hammer chisel delivers 7 joules of impact energy for heavy-duty material removal High-performance brushless motor delivers up to 3000 BPM for fast chipping, scaling, and demolition |
selling_points: |
✔ 7 Joules of Power: Delivers heavy-duty impact energy for fast concrete demolition ✔ Up to 3000 BPM: High-speed hammering action speeds through tile, mortar, and scaling |
