Update October 28, 2017: New, smoother .stl files with better tolerances, made with Fusion360.

Two pieces for easy nozzle changes. For standard ¼" (the small one) and ⅜" (the big one) nut drives. Smooth design with a lot of fillets. Fits well in your hand.

Use a strong material like Nylon or PETG.

Doesn't Matter

No

0.2-0.3mm

100%

Printed mine in Taulman Nylon Bridge at 245°C and Eco PETG from ColorFabb at 235°C.

Was 123Design, but now redesigned in Fusion360.