Max Torque:
A primary indicator that directly determines product positioning.
It is important to distinguish between peak torque and continuous torque.
High-torque models target automotive and heavy-equipment repair, while low-to-medium torque models focus on home DIY applications.
Drive Square Size:
Mainstream sizes include 1/2-inch (best-selling for automotive repair) and 3/8-inch.
The 1/2" drive handles vehicle tires and heavy-duty bolts, commanding the highest market demand, whereas the 3/8" drive is suitable for small-to-medium fasteners.
Rated Voltage and Battery Platform Compatibility:
Common platforms include 18V, 20V, and 21V systems, with 20V being the mainstream standard in overseas markets. Compatibility with batteries from major brands enhances product appeal by allowing end-users to reuse existing batteries.
No-Load Speed & Impact Rate:
Measured in RPM (revolutions per minute) and IPM (impacts per minute).
A higher impact rate improves efficiency when removing seized or rusted bolts. High speeds facilitate rapid assembly and disassembly, while low speeds allow for precise fastening; these parameters are crucial for differentiating performance against competitors.
Built-in Protection Features:
Includes overload protection, overheat protection, battery overcharge/over-discharge protection, and a safety lock to prevent accidental activation.
A comprehensive protection circuit significantly reduces customer complaints regarding motor burnout or battery failure-a key benefit for wholesalers looking to minimize returns and exchanges.
Certifications:
Includes CE, FCC, RoHS, etc. These are essential for customs clearance by importers. Lack of proper certification prevents customs clearance and serves as a mandatory prerequisite for procurement; products must comply with the regulatory requirements of the target sales market.






