
Wadfow WCD1B78 Cordless Impact Wrench
The Wadfow WCD1B78 Cordless Impact Wrench 20V is designed for heavy-duty fastening and loosening applications in automotive repair, equipment servicing, and construction work.
- Brand
- Wadfow
- Category
- Power Tools
- Subcategory
- Drills & Drivers
- Sold per
- unit
- Pricing
- Request a quote (RFQ)
- Delivery
- Nationwide, same-day quote
Product details
Powered by a brushless motor and a 20V lithium battery system, this impact wrench delivers strong torque output while maintaining efficiency and durability. Key Benefits • Brushless motor technology for improved efficiency and longer service life • High fastening torque of 780Nm with nut-busting torque up to 950Nm • Three-speed control for better torque and speed adjustment Product Overview The Wadfow WCD1B78 cordless impact wrench is engineered to provide powerful fastening performance for demanding applications such as automotive wheel servicing, heavy equipment maintenance, and structural fastening. The 1/2-inch square drive is compatible with a wide range of impact sockets used in mechanical and industrial work.
The tool features three adjustable speed modes with no-load speeds of 0–1600, 0–2100, and 0–2400 RPM and impact rates up to 2200 BPM. These settings allow users to match torque and speed depending on the fastening task. The brushless motor improves durability while reducing heat generation and maintenance requirements.
An integrated LED work light enhances visibility when working in dim environments such as garages or job sites. The included 4.0Ah battery packs provide extended runtime for continuous work during demanding applications.
Ideal Applications • Automotive repair and wheel maintenance • Equipment servicing and mechanical work • Construction and structural fastening tasks Technical Specifications Model WCD1B78 Motor Type Brushless motor Voltage 20V Square Drive 1/2" No-Load Speed 0 – 1600 rpm 0 – 2100 rpm 0 – 2400 rpm Impact Rate 0 – 1500 bpm 0 – 1800 bpm 0 – 2200 bpm Fastening Torque 780 Nm Nut-Busting Torque 950 Nm Integrated Light LED work light Charging Voltage 220–240V ~ 50/60Hz What’s Included • Wadfow WCD1B78 Cordless Impact Wrench • 3 pcs deep sockets (22mm, 24mm) • Belt clip • 2 × 4.0Ah battery packs (WLBP540) • Battery charger (WFCP518) • Carrying case Learn more about our Warranty Policy or contact us for professional assistance.





