Banggood 3018 Mini Cnc Router Kit grblControl easel flatcam Improved collet for the 3018 CNC ER11A collet holder and 1-7mm collets (Banggood) ER11A collet set (Ebay US) ER11A Collet set (Ebay UK) ER11A collet set (Ebay DE) The ER11A extension holder fits the 5mm motor shaft. The fit is quite tight see below. To fit … Continue reading Banggood 3018 3 Axis Mini Cnc Router Build, test & Review