I have several torque wrenches that I rarely use unless it's something critical. I have two or three vintage SO Torqometers that I thought about selling to free up some space in my box. I have no idea if these are worth $40 or $100, have both 3/8 and 1/4". Thought about asking my local dealer about calibrating them but I'm not even sure if it's worth it. Any thoughts on a value.