Well actually, I do not know by heart, but even if I did, it would be non-existent. At least in the R/C Universe that I live in (four dimensional, you see). Kilograms are normally a measure of force or mass, inch-pounds is a measure of torque (distance x force). So we are talking apples & Klingons here. I suspect the guy meant kilo-cm or something like that, but you absolutely CAN NOT express servo torque in kilograms, at least not and expect it to have meaning (in our universe, R/C or nor). ;-)