When the filling is finished, then all is done. Because it doesn’t need to reassemble the mouthpiece.
No waste of the oil pipe of KC-MV01 is designed to be very short, and the oil injection needle and the oil pipe are inclined, not parallel, not curved, so the oil will not stay in the pipe, which will make it fill the last drop of oil

• Size: 56.3*11.5mm
• Capacity: 1.0 ml
• Oil hole size: 2 holes  1.4*3mm*2
• Ceramic cell heating coil
• 1.4 ohm
• Full ceramic carts & Vacuum filling
• Heavy metals free & leak-proof