Features：

*The product is suitable for brushless electric wrenches. 

*18V 21V Brushless Angle Grinder Drive Plate Polishing Machine.

*General Control Panel Size 5.2*6.2CM.

*Brushless sensorless angle grinder drive control board general

*Control board drive voltage: 18V (5 strings of lithium batteries, fully charged 21V), power 300W.

*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.

Specifications：

*Product name: Controller Board 

*Material: Metal, Plastic

*Color: Black

*Size: (Approx. ) 52*62*8mm / 39*39mm

*Suitable for: brushless electric wrenches

*Quantity: 1pc

Package Content：

1*Drill Dust Collector

Note：

1.Transition: 1cm=10mm=0.39inch.

2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.

3. Please allow slight manual measurement deviation for the data.

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

We only ship to confirmed ebay Order addresses. Please comfirm that your Order address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. 

It takes about 7-15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.