These are being sold as singles, they are both in great shape, there are a few chips in the insert bits, but they can be flipped 3 more times to a fresh cutting tip. They actually measure 3-5/16" or 3.312" from tip to tip of the bits.If you want them both, the shipping will be FREE on the second one. I have many other shell mills for sale also..Go to my ebay store (My Ebay name is Dragar85 ) and put in those key words to see them all..Also many Cat 50 40 NMTB50 40 and other brand tool holders..I can combine shipping if you are interested in more than one item..I will ship right away.Of course I would love if you came to see all I have and maybe I have a few you need.Or other machining tooling. I have a lot of 1/2" to 3" diameter taps and different thread pitches for sale too. Call Mike 952-854-5 seven eight six