4V Electric Assist Ratchet Wrench

• CORE ADVANTAGES--Dual power design: Electric pre-tightening torque up to 13.28 lbf-in, max manual torque reaches 442.5 lbf-in (36.9 ft-lbs) for heavy-duty fastening & loosening. Built-in stall protection buffer system prevents motor burnout from locking rotation. 380 RPM electric fast pre-tightening with 1.5 N·m auto-stop for precise fastening control. Ergonomic anti-slip grip cuts hand strain during long-time repetitive work.

• PRODUCT FEATURES--Dual socket compatibility: Equipped with 1/4" & convertible 3/8" socket adapter for different bits and sockets.
Simple forward/reverse rotation switching for convenient screw/nut disassembly and assembly.
Compact ratchet head design fits narrow, confined working spaces inaccessible for regular wrenches.

• APPLICATION SCENARIOS--Auto maintenance: Repair, disassembly and assembly of vehicle nuts and bolts.
Household projects: Furniture assembly, cabinet installation, daily home fixture repairs.
Light construction & equipment maintenance: Small machinery and fixture bolt tightening jobs.

• COMMON PROBLEMS & SOLUTIONS--Electric head fails to rotate
Solution: Check battery power; recharge in low-power state. Confirm no jammed debris blocking the ratchet head.
Auto-stop function does not trigger
Solution: Do not apply excessive external manual force during electric pre-tightening to ensure normal torque sensing. 

• IMPORTANT NOTES--Do not overload the wrench beyond its rated maximum torque to prevent structural damage. Avoid continuous long-time electric operation to prevent motor overheating. Clean dust and debris on ratchet head regularly after use; store in dry environment.