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You're correct.
A cutting disk of that size would need to be mandrel mounted.. (Mandrel = axle and hub).
4mm wide and 60cm diameter would tear itself apart under centrifugal force.
Even a flat sided disc cutter, without mandrel, would leave a quarter circle cut at the top and bottom of the overall cut.
The only other thing I can think of is a router, but that would have to have a prohibitively long length to diameter ratio.
Bend and break.
Can't get a saw in there because the ends of the cut are blind..
It looks like a saw cut but it can't be..
I don't know ??

It obviously caught the attention of the Russian guy.

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Subject Views Written By Posted
No other explanation ...high tech 1527 Racho 11-Nov-17 21:39
sorry to all...but at the 21 min mark and a few minutes after 304 Racho 11-Nov-17 22:08
Re: No other explanation ...high tech 378 D-Archer 12-Nov-17 08:57
Re: No other explanation ...high tech 338 Thanos5150 12-Nov-17 17:31
Not megalithic 405 Racho 14-Nov-17 06:40
Re: Not megalithic 248 Audrey 14-Nov-17 18:08
Re: Not megalithic 269 Jon Ellison 14-Nov-17 20:33
Re: Not megalithic 168 Audrey 14-Nov-17 21:56
Re: Not megalithic 192 Jon Ellison 14-Nov-17 22:23
Re: Not megalithic 195 Audrey 14-Nov-17 22:49
Re: Not megalithic 161 Jon Ellison 14-Nov-17 23:33
Re: Not megalithic 240 Audrey 15-Nov-17 01:49
Re: Not megalithic 351 Jon Ellison 15-Nov-17 07:35
Re: Not megalithic 184 Audrey 15-Nov-17 22:23
Re: Not megalithic 244 Racho 27-Nov-17 01:46
Re: Not megalithic 224 Corpuscles 27-Nov-17 02:28
Re: Not megalithic 256 Racho 27-Nov-17 02:52
Stone Spheres Are Natural Formations 134 Barbelo 27-Nov-17 05:37
I think the point is proven 166 Racho 27-Nov-17 06:04
Re: I think the point is proven ; 199 Barbelo 27-Nov-17 11:02
dismissive 109 Racho 27-Nov-17 16:48
Re: I think the point is proven 127 Origyptian 27-Nov-17 15:36
Let's learn about the science/realities associated with cutting stone 152 Racho 27-Nov-17 06:41
Re: Not megalithic 137 Origyptian 27-Nov-17 06:50
I Second That 217 Barbelo 27-Nov-17 20:52
wow...talk about being unhinged/triggered 167 Racho 27-Nov-17 23:26
Re: wow...talk about being unhinged/triggered 171 Corpuscles 27-Nov-17 23:46
Re: wow...talk about being unhinged/triggered 205 Barbelo 28-Nov-17 00:00
you start... 231 Racho 28-Nov-17 03:53
Re: you start... 228 Barbelo 28-Nov-17 05:15
Re: I Second That 244 Audrey 28-Nov-17 01:43
Wacko or Crackpot? 259 Barbelo 28-Nov-17 02:30
Re: Wacko or Crackpot? 192 Corpuscles 28-Nov-17 02:49
Re: Wacko or Crackpot? 220 Audrey 28-Nov-17 03:38
Re: Wacko or Crackpot? 291 Barbelo 28-Nov-17 05:23
Re: Not megalithic 141 Corpuscles 27-Nov-17 20:03
Re: Not megalithic 236 Audrey 28-Nov-17 00:11
Re: Not megalithic 265 Corpuscles 28-Nov-17 00:55
Re: Not megalithic 206 Audrey 28-Nov-17 02:02
Re: Not megalithic 297 Warwick 29-Nov-17 21:08
Re: Not megalithic 210 Origyptian 15-Nov-17 22:38
Re: Not megalithic 171 Jon Ellison 15-Nov-17 23:10
Re: Not megalithic 168 Jon Ellison 15-Nov-17 23:32
Re: Not megalithic 273 Origyptian 16-Nov-17 02:47
Re: Not megalithic 194 Origyptian 16-Nov-17 02:43
Re: Not megalithic 274 Origyptian 14-Nov-17 21:58
Re: Not megalithic 234 Jon Ellison 14-Nov-17 22:14
Re: Not megalithic 202 Origyptian 14-Nov-17 22:38
Re: Not megalithic 174 Thanos5150 14-Nov-17 22:55
Re: Not megalithic 246 Thanos5150 14-Nov-17 23:02
Re: Not megalithic 159 Audrey 14-Nov-17 23:46
Re: Not megalithic 242 Corpuscles 15-Nov-17 00:09
Re: Not megalithic 241 Audrey 15-Nov-17 01:15
Re: Not megalithic 263 Thanos5150 15-Nov-17 00:26
Re: Not megalithic 224 Corpuscles 14-Nov-17 22:47
Re: Not megalithic 226 Warwick 15-Nov-17 02:47
Re: Not megalithic 257 Audrey 15-Nov-17 04:06
Re: Not megalithic 174 Warwick 18-Nov-17 00:59
Re: Not megalithic 241 Racho 15-Nov-17 06:26
Re: Not megalithic 269 Warwick 18-Nov-17 01:01
Re: No other explanation ...high tech 328 Origyptian 12-Nov-17 14:37
Re: No other explanation ...high tech 351 Corpuscles 12-Nov-17 17:48
There Has Never Been Solid Ground 286 cladking 12-Nov-17 19:10
Re: There Has Never Been Solid Ground 256 Corpuscles 12-Nov-17 20:06
Re: There Has Never Been Solid Ground 268 cladking 12-Nov-17 20:55
Re: There Has Never Been Solid Ground!!!!!!!!!!! 247 Corpuscles 12-Nov-17 21:26
Re: There Has Never Been Solid Ground!!!!!!!!!!! 286 cladking 12-Nov-17 21:42
Facinating 259 Warwick 14-Nov-17 20:23
Re: Facinating 226 cladking 14-Nov-17 21:33
Re: Facinating 254 Warwick 15-Nov-17 02:51


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