I've got a SPIT324V battery drill. Its a 24V monster, a few years old
but hardly used. I have trouble getting bits for it as they have a
shank the same as the Bosch SDS but with an extra groove, which means
SDS bits can't be used in it, although S2S bits can be used in a Bosch
(so I'm told).

Anyone know where I can get

1) S2S drill bits
2) A converter from S2S to SDS so I can get drill bits easier. The
ones I have got so far are old ones a hardware shop had lying in a
drawer from years ago.

Thanks

Charlie