This is about ParkTool bottom bracket threading and facing tool. I recently ordered one on Amazon. And this is what mine looks like



Note: two circular grooves at the business end of each handle (and two spring rings, both installed on one side for some reason).

Meanwhile, the pictures of the tool available on the net are a bit different: three circular grooves in each handle



and four spring rings (two on each side).

This is probably some kind of relatively recent production change. (And most likely spring rings should be installed differently: one on each side.) BTW, the tool worked perfectly fine for me. But I'm still curious: do any of you have more recent versions of BTS-1? How many grooves do you have in your handles?