These can come in 2 forms.2 separate cutters or ones that are re assembled like this I've always wondered if the 2 separate cutters were a bit of a swindle as either of them could be re assembled as above. The ogee cutters on them have opposite rake angles but that just relates to which way up they are used and they could be the same when re assembled. Just means reversing the face up / face down. Any one know if the 2 cutter types can be re assembled. Rather hard to see why they couldn't be. John -