This is a compact screwdriver designed to look like a bullet.

It features an internal bit container capable of storing 8 bits.

It uses magnets for the lock mechanism. 

Materials: 

• I highly recommend using PETG for the internal part, to make it strong. For the rest of the parts you can use any material you like.
• A little glue
• 1 magnet size: 6x2mm
• 8 magnets size: 4x2mm

Assembly:

1. Insert magnets 
2. Attach the top cap to the container and glue the button on.
3. Remove brim from the bit hole.

4. Insert the bit container into the bullet head (this is a very tight fit, use the force!)

    

That's it. Happy screwing!