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Oct 07, 2026

Key Specifications of Cordless Impact Wrenches

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.

 

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