| Specification | DONGCHENG DCJZ1202E (Type E) | DONGCHENG DCJZ2060I (Type EM) | DONGCHENG DCJZ2090I (Type AM) |
| Product Type | Compact Cordless Drill / Driver | Brushless Compact Impact Drill | Heavy-Duty Brushless Combi Drill |
| Rated Voltage | 10.8V | 20V Max | 20V Max |
| Motor Type | High-Efficiency Brushed Motor | Brushless (BL Motor) | Brushless (BL Motor) |
| Maximum Torque | 35 N·m | Heavy-Duty Output (500W class) | Up to ±90 N·m |
| Chuck Size / Type | 10 mm Keyless Chuck | 13 mm Metal Ratcheting Chuck | 13 mm Heavy-Duty Keyless Chuck |
| No-Load Speed | Low: 0–400 / High: 0–1500 r/min | 2-Speed Adjustable Gearbox | 2-Speed Variable via Trigger |
| Clutch Settings | 18 + 1 (Drilling) | 20 + 2 (Drill / Impact) | Multi-Stage Clutch + 3 Mode Switch |
| Operating Modes | Screwdriving & Rotary Drilling | Screwdriving, Drilling & Impact | Screwdriving, Drilling & Impact |
| Body Length / Weight | 1.0 kg (Net Weight) | 152 mm Body Length | Approx. 4.4 kg (Complete Package) |
| Drilling Capacity | Steel: 10 mm / Wood: 22 mm | Steel / Wood / Brick: Up to 13 mm | Wood, Metal, Brick & Light Concrete |
| Best Used For | Cabinetry & Precision Assembly | Tight-Space MEP & Light Masonry | Heavy Structural Fastening & Anchoring |
Comprehensive Multi-Tier Power Spectrum: Spans from a lightweight 10.8V 35 N·m detail drill to an industrial 20V brushless 90 N·m heavy-duty combi drill, providing an exact tool for light screwdriving up to structural masonry boring.
High-Efficiency Brushless Motor Engineering: Brushless power units on the 20V models maximize battery runtime, deliver cooler running performance under load, and eliminate carbon brush replacement downtime.
Agile Ergonomics & Tight-Access Reach: Features an ultra-lightweight 1.0 kg chassis on the DCJZ1202E and a short 152mm head length on the DCJZ2060I for maneuvering in cramped stud cavities, crawlspaces, and electrical panels.
Heavy-Duty Clamping Systems: Equipped with precision keyless chucks—including a 10mm chuck on the 10.8V unit and all-metal 13mm ratcheting sleeves on the 20V models—to eliminate bit slippage under high torsional shock.
Unified 20V Platform Cross-Compatibility: The 20V battery architecture shares power interchangeability across Dongcheng's cordless ecosystem, streamlining job-site logistics across Nepal.