Bringsmart 12V 160rpm DC Worm Gear Motor 10kg.cm Self-locking Engine Reversed Mini Turbine Geared Motor for DIY Robot Rotating Table Door Lock Curtain Machine (12V 160rpm) a.co/d/6bIFhK3
Sorry for the late reply. This is the link where I bought my T bit i just cut it the length I need. uxcell Rubber Coated T Handle 10mm Hex Hexagon Socket Wrench Spanner Tool a.co/d/eryFkT3
And this what I used to connect it to my motor. uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs a.co/d/3LVmnCH