| Specification | Parameter |
| Brand | Dongcheng |
| Model Name / Number | DCZC22 |
| Product Type | Cordless Brushless Rotary Hammer |
| Battery Platform | 20V MAX (Compatible with 2.0Ah, 4.0Ah, 5.0Ah options or Bare Tool) |
| Motor Type | High-Efficiency Brushless Motor |
| Impact Energy | 2.1 J |
| No-Load Speed | 0 – 1,400 RPM |
| Rated Impact Frequency | 0 – 4,500 /min (BPM) |
| Max. Drilling Capacity | Concrete: 7/8" (22 mm) | Steel: 1/2" (13 mm) | Wood: 1-1/8" (28 mm) |
| Chuck Type | SDS-PLUS Quick-Change Chuck |
| Operating Modes | Drill, Rotary Hammer & Demolition (with Direction Adjustment) |
| Unit Net Weight | 4.5 lbs (Bare Tool) / 5.7 lbs (With Battery Config) |
| Application Scope | Concrete Boring, Masonry Drilling, Wood/Steel Drilling & Light Chipping |
| Best Used For | Remote Construction Sites, Overhead Utility Installation, Renovation Crews & Maintenance Jobs |
Advanced Brushless Motor Performance: Powered by an efficient brushless motor that delivers stable, high-torque power with zero iron loss, extended runtime, and superior durability.
Versatile 3-Mode Operation: Features selectable modes for drilling, rotary hammering, and light demolition, complete with an adjustable chisel direction for optimal control.
Optimized Impact Energy & Speed: Delivers 2.1 Joules of impact force, an adjustable no-load speed of 0 to 1,400 RPM, and up to 4,500 BPM for rapid material penetration.
SDS-Plus Quick-Change Chuck: Equipped with an optimized lock design and quick-change chuck mechanism to streamline bit changes and extend tool longevity.
Ergonomic & Lightweight Mobile Build: Designed with an anti-vibration soft-rubber grip, integrated LED work light, and a lightweight 4.5 lbs (bare tool) frame for effortless overhead use across Nepal.