update on my faulty ddm2. took it to the marcrist factory in doncaster rather than posting to the online retailer and then waiting for them to post it backwards and forwards. tricky place to get into had to ring the bell and wait to be let in! But this is where things went from bad to fantastic, explained whet was wrong (look at my previous post) customer services manager said give me 10 mins and have a seat in the waiting room. fully expexted him to come back and say come back in 10 days and pick it up but no he said come through they had taken it apart adjusted the clutch showed it to me working got me to use it. replaced the cracked handle and took out the lock on the switch at my request! all in less than 30 mins from me ringing the bell. and was shown there new and other drills in the test area! ddm1 with there cores can core and hammer at the same time! top service total faith returned!