new saw

[Chippygeoff]

I watched the video as well and thought the same as John as I saw the guy cutting the internal cut, he spun the blade rather than back it up as John as explained. Although it is slightly quicker to cut out you cannot get a sharp corner. to the untrained eye it would not be noticeable but personally I would always back the blade up in tight corners.

 

[nadnerb]

that looks like the Hegner Multicut - Quick, a serious piece of kit but you need a large cheque book for one!!
Regards
Brendan