17, 20, 25, 38mm multi-size double ball adapters

This multi-size double ball mounting adapter assortment includes four industry-standard sizes: 17mm, 20mm, 25mm (1" B size), and 38mm (1.5" C size).

Each adapter is a double ball mount with different-sized balls at each end.  They also have flattened ends that allow for easy printing without supports while retaining full functionality.

If you need the same size ball at each end, then please see 17mm, 20mm, 25mm, 38mm double ball assortment .

Check out my collection of models for mounting systems and accessories .

Dimensions

38mm to 25mm adapter

(the 38mm end is also known as 1.5” RAM C size)

12mm shaft diameter

50mm center-to-center length

25mm to 20mm adapter

(the 25mm end is also known as 1” RAM B size)

9mm shaft diameter

35mm center-to-center length

25mm to 17mm adapter

(the 25mm end is also known as 1” RAM B size)

9mm shaft diameter

32mm center-to-center length

20mm to 17mm adapter

9mm shaft diameter

28mm center-to-center length

Boost Me