SFIV1967
Venerated Member
Actually from the drawings I would be negative. Rotomatics have 10,5mm, the SXN510 10mm and I would bet the Grover 136 is even less than 10mm, more in the 9,5mm range. At least that is what I get when I enlage the drawing and compare and measure it with 2:1 size. So the bottom hole is 1mm off towards the center compared to the original Rotomatics hole if the drawings are correct....while the Grovers don't since one hole matches
Ralf