2GT Aluminum Timing Pulley Synchronous Wheel 20-teeth, 7mm/8mm wheel bore Size:7mm You can choose:

You can choose:

1set - Extension Cable 1m

5V Operation voltage

LED status indicators to indicate the relay ON/OFF status

compatible with I2C interface

2GT Aluminum Timing Pulley Synchronous Wheel 20-teeth, 7mm/8mm wheel bore Size:7mm You can choose:Features: Fits for milling machine, gear shaper, drilling machine, 3D printer, and so on. Made of aluminum alloy material, with lightweight, anti rust, tough and durable. 20 teeth synchronous wheel, with 7mm 8mm bore size, more convenient to use. The synchronous wheel is easy for installation and use. 20 contact with the teeth side which minimizes the risk of the belt slipping Material: aluminum alloy material synchronous wheel, with high abrasion