Yeah, they're for dry cutting TCT chopsaws. Recent thread about them here with some discussion of blades... http://www.mig-welding.co.uk/forum/threads/chop-saw-dry-saw.53526/#post-626672 An occasional misting with wd40 or similar is useful when cutting a lot of ally to stop chips from sticking to the teeth as they're general purpose/ferrous cutting and don't have a negative rake
Dunno what saw you're planning on fitting them and you're probably aware of this anyway but note the max rpm of the blade is around half that of mitre or table saws designed primarily for wood cutting which is part of the reason they have a different size mounting hole; 25.4mm instead of 30mm for a 305mm blade
