Here is the Tutorial.
Start SolidWorks in Part mode.
Front Plane>>Sketch and draw a circle.
Select the front face of the cylinder>>sketch.
Make two circles.
Extrude cut it.
Make a profile like this one.
Revolve cut it.
Select the body as the flex input. Change the type to twisting and enter an angle value of 300 degree or something like that.
Click OK and we have the drill bit.