Is one an older blade that's superseded by a new number? I ran into this with two 55 blades that had different kerfs and I think tooth counts as well. Festool sold them side by side to get the old number /stock out of distribution. Looking at Bobs page, one TS75 is called Panther and the other is Standard, but is not a Universal blade. Fun.... [big grin]. Why does Festool do this....
I see the Panther is an ATB grind, did anyone see what the tooth pattern was for the Standard blade?