I've seen a lot of multimeter probe clips on this site recently, but they were all tweezer style clips. So I made these which can be freely adjusted and locked in position.

The clips are designed for probes with a 11mm diameter, but I also included a step file, so the clips can be adjusted in modeling software such as Fusion360. 

The handle on the screw isn't my design, it's the hexagon star grip by practical3D

Other Required parts: One M4 bolt that's at least 25mm long, together with a fitting Heat Set Insert.