Description of VERTEX 3900 2330 Horizontal Vertical Rotary
10 second Vernier reading with a gear ratio 90:1. One rotation of handle equals 4° on collar. Overall Horizontal Height: 4.5", Overall Vertical Height: 12.8". Center Hole: 3MT, Vertical Center Height: 6.5". 6 T-Slots, T-Slot Size: .55".
Being new to homework I bought an 8in table who also has 3 T keys. The table is solid and looks well built, runs smoothly and fits my mill well. I haven't put it in the mill yet though - curious why the zero reference position seems to align with nothing other than the T-slot. "Zero" is 5-7 degrees from the vertical mounting surface, and the zero reference point is not adjustable that far. harder than it has to be.