driver bit
thingiverse
Spin of the customized version at http://www.thingiverse.com/thing:56218, created using Customizer! Access it via this link: http://www.thingiverse.com/apps/customizer/run?thing_id=56218 To print upside down, set 'turn_upside_down_for_printing' to 180 degrees. For hole shapes, row 2 and 4 are both 2; row 3 and 1 have a diameter of 7 and a shape of 2, respectively. Row 2 has a diameter of 7 as well. In each row, the number of tools is 5. Hole taper is set to 4, while row 4's hole diameter is also 7. The tray height is 40. Please follow these options for customization.
With this file you will be able to print driver bit with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on driver bit.