[High-Efficiency Brushless Motor & Extreme Torque]: Powered by an advanced industrial brushless motor, this cordless rebar coupler wrench delivers consistent, high-torque performance that significantly boosts concrete construction efficiency. Unlike traditional motors, our permanent magnet brushless technology maintains stable power output under heavy loads without decaying, ensuring a service life that is multiple times longer. [15-Second Quick Splicing & Time-Saving Operation]: Say goodbye to manual tightening. With its high-torque drive, this automatic rebar splicing tool completes the tightening of a rebar sleeve in just 15 seconds. It drastically reduces labor intensity and accelerates your project timeline, making it a game-changer for heavy-duty foundation, bridge, and tunnel construction. [Universal Adjustable Jaw – No Tooth Replacement Needed]: Engineered with a smart adjustable jaw design, this electric rebar sleeve connector fits different sizes of sleeves without requiring any tedious tooth or jaw replacements. Simply adjust the tooth spacing to clamp and tighten rebar couplers and steel sleeves ranging from 16mm to 40mm, providing ultimate versatility on the job site. [90° Rotatable Head & 1-Key Forward/Reverse Switch]: Designed for complex and confined work environments, the tool's head can rotate 90 degrees to easily fit into tight rebar meshes and narrow spaces. Featuring a convenient one-button forward/reverse switch, it allows you to switch between tightening and loosening with ease. Note: For safety, placing the switch in the center locks the machine to prevent accidental startup. [Long-Lasting Lithium Battery & Portable Kit]: Equipped with a high-capacity rechargeable lithium battery, this cordless power tool offers prolonged runtime for continuous outdoor work. The ergonomic anti-slip grip and balanced body minimize fatigue during long shifts, making it the perfect professional-grade addition for contractors, pipefitters, and concrete construction workers.