Suitable For Dayi 2106/161/169 Brushless Electric Wrench Drive Sensorless Assembly Angle Grinder Accs Motor Control Board Switch Specifications: Material: Other Packaging: 1 set Size: As picture Control board drive voltage: 18V(21V) 300W Suitable for: 2106/161/169 brushless electric wrench Description: The product is suitable for Dayi 2106/161/169 brushless electric wrenches. It assembly includes motor / control panel / switch (default small switch). 18V 21V Brushless Angle Grinder Drive Plate Polishing Machine Dayi General Brushless sensorless angle grinder drive control board general. Control board drive voltage: 18V (5 strings of lithium batteries, fully charged 21V), power 300W. The battery pack marked with 48V, 68V, 88V, 98V, 128VF or TV can be used, and its voltage is actually 18V (5 series 2 parallel 10 cells or 5 series 3 parallel 15 lithium batteries, fully charged 21V) . Before testing the machine, you must first connect the wire---fix the motor---install the case---tighten the screw---make sure that the square shaft of the head can be easily rotated without jamming---connect the power supply--- Press down the speed control switch so that there is no gap in the shell! Otherwise, there may be a buzzing alarm! To prevent damage to the motherboard, please follow the requirements. The brushless motor is designed with higher power, which means that it can generate greater torque and has more room to complete various heavy operations. Compared with Brush Motors, brushless motors are more durable and can withstand repeated wear and tear, especially in harsh working environments. It is a general-purpose wrench, suitable for various s and models, providing users with greater convenience and economy. The design is user-friendly, easy to install and use, and can be easily replaced without professionals. Note: Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding. Due to the differences between different monitors, the images may not reflect the actual color of the item. Please refer to the actual image received. Thank you very much. _x000D_ _x000D_ _x000D_