Here I will show how to make a screw driver in 3ds max.

I have used following techniques in making of this tutorial.

[1]First take Ngon of this size in the top view port.

[2]Go to the modifier panel select extrude and apply it.

[3]Convert it into editable poly.

[4]Select the top polygon like this.

[5]Then add a extrusion by 80 units.

[6]Then add bevel of this parameters.

[7]It will look like this.

[8]Again add extrusion by 15 units.

[9]Add some bevel again.

[10]It will look like this.

[11]Add a little extrusion again.

[12]Then hit on the outline polygon and adjust it like this.

[13]Insert polygon by 3.

[14] It will look like this.

[15]Add negative bevel by 2 units.

[16]Add a mesh smooth to it by iteration-3.

[17]Your image will look like this.

[18]Take another Ngon of radius 5 and sides 12.

[19]Add extrude modifier by 0.1 units.

[20]Convert it into editable poly.

[21]Select the polygon and extrude by 250 units.

[22]Again add extrusion by 10 units.

[23]Then add outline polygon by -4.5 units.

[24]This will look like this.

[25]Switch to the vertex mode and select the vertexes like this.

[26]Drag the selected vertexes downwards.

[27]Select the edges as shown in the figure and hit chamfer.

[28]Add a mesh smooth to it.

[29]Place it like this.

[30]Rotate the object like this.

[31]This is your final image.

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