I forgot I had this I build a lot of EDF jets and needed a balancer that would balance a little 50mm fan but I got burned out on building jets and never used it its been put away in a box. The finger balancer wont work on it the shaft on mine is 2-3/4 if I remove one set of magnets its 3in. its a nice sturdy unit but like I say the shaft is crap it rolls to a heavy spot every time. Just like that one they call precision balancer how can it be precise if the darn shaft and hubs arnt balanced!!
Dave