Water propellers for many uses.
The propellers are 150 mm in diameter and 30 mm high, the blade flaps are around 4 mm thick.
The propeller for the drilling machine has the fitting peg, which is 10 mm in diameter and is suitable for any drilling machine.
The propeller with the hole has the hole with a 15 mm diameter and can be attached to any kind of motor.
The author marked this model as their own original creation.