Specs on Lehner 1920

[BrianG]

LMT 1920/7: 4688
LMT 1920/6: 5227
LMT 1920/5: 6272

46mm long x 26mm diameter, 1/8" shaft diameter.

For more specs, check out the LMT site.

Asking about a competitors product probably isn't the best thing to do here. I would keep on emailing or call him. The fact that he is not answering product questions should give you an idea about his customer service though...