Groove spacing is center to center of grooves.
EG4050 Evergreen V-Groove Sliding .050" Spacing (1.3mm)
Evergreen EG4050 V-Groove 1.3mm Spacing 1.0mm Thick Plasticard Sheet
EG4030 Evergreen V-Groove Sliding .030" Spacing (0.75mm)
EG2080 Evergreen V-Groove Sliding .080" Spacing (2.0mm)
Methanol Engine Run in Test Stand Sliding Nut Channels Stable CNC Machined
Arrma Sliding Motor Mount Plate 56 Series, Red ARA320722