The bearings themselves are great and I have no complaints on them! I would like to see some tolerances on the products I was dealing with press fits and was dealing with 3 16" dowel pins +.0001" to + .0003" and had to order these on a whim luckily they worked out fine. I ordered the parts from McMaster-Carr and had easy access to all of the tolerances. This is their description: Alloy Steel?Our strongest dowel pins. Made from hardened steel. Diameter tolerance is +0.0001" to +0.0003" (unless noted). I would like to see the tolerances on the bearings