They are. They grey line. Ask at the desk and they will tell you the OEM.
A big difference.
They have two SDS machine. One under £100. The one around £120-130 is excellent. They also sell a battery SDS too. (Kress).
Go to a Kress dealer, who sell the full Kress range. BMJ Power were dealers, but I think they have been bought up. Send an email to Kress they will tell you the dealers.