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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 1425 Racho 11-Nov-17 21:39
sorry to all...but at the 21 min mark and a few minutes after 260 Racho 11-Nov-17 22:08
Re: No other explanation ...high tech 331 D-Archer 12-Nov-17 08:57
Re: No other explanation ...high tech 289 Thanos5150 12-Nov-17 17:31
Not megalithic 352 Racho 14-Nov-17 06:40
Re: Not megalithic 194 Audrey 14-Nov-17 18:08
Re: Not megalithic 218 Jon Ellison 14-Nov-17 20:33
Re: Not megalithic 133 Audrey 14-Nov-17 21:56
Re: Not megalithic 159 Jon Ellison 14-Nov-17 22:23
Re: Not megalithic 156 Audrey 14-Nov-17 22:49
Re: Not megalithic 128 Jon Ellison 14-Nov-17 23:33
Re: Not megalithic 203 Audrey 15-Nov-17 01:49
Re: Not megalithic 304 Jon Ellison 15-Nov-17 07:35
Re: Not megalithic 142 Audrey 15-Nov-17 22:23
Re: Not megalithic 189 Racho 27-Nov-17 01:46
Re: Not megalithic 173 Corpuscles 27-Nov-17 02:28
Re: Not megalithic 201 Racho 27-Nov-17 02:52
Stone Spheres Are Natural Formations 97 Barbelo 27-Nov-17 05:37
I think the point is proven 130 Racho 27-Nov-17 06:04
Re: I think the point is proven ; 161 Barbelo 27-Nov-17 11:02
dismissive 90 Racho 27-Nov-17 16:48
Re: I think the point is proven 98 Origyptian 27-Nov-17 15:36
Let's learn about the science/realities associated with cutting stone 118 Racho 27-Nov-17 06:41
Re: Not megalithic 101 Origyptian 27-Nov-17 06:50
I Second That 178 Barbelo 27-Nov-17 20:52
wow...talk about being unhinged/triggered 130 Racho 27-Nov-17 23:26
Re: wow...talk about being unhinged/triggered 128 Corpuscles 27-Nov-17 23:46
Re: wow...talk about being unhinged/triggered 166 Barbelo 28-Nov-17 00:00
you start... 176 Racho 28-Nov-17 03:53
Re: you start... 175 Barbelo 28-Nov-17 05:15
Re: I Second That 193 Audrey 28-Nov-17 01:43
Wacko or Crackpot? 188 Barbelo 28-Nov-17 02:30
Re: Wacko or Crackpot? 150 Corpuscles 28-Nov-17 02:49
Re: Wacko or Crackpot? 168 Audrey 28-Nov-17 03:38
Re: Wacko or Crackpot? 218 Barbelo 28-Nov-17 05:23
Re: Not megalithic 103 Corpuscles 27-Nov-17 20:03
Re: Not megalithic 171 Audrey 28-Nov-17 00:11
Re: Not megalithic 193 Corpuscles 28-Nov-17 00:55
Re: Not megalithic 161 Audrey 28-Nov-17 02:02
Re: Not megalithic 240 Warwick 29-Nov-17 21:08
Re: Not megalithic 158 Origyptian 15-Nov-17 22:38
Re: Not megalithic 136 Jon Ellison 15-Nov-17 23:10
Re: Not megalithic 133 Jon Ellison 15-Nov-17 23:32
Re: Not megalithic 228 Origyptian 16-Nov-17 02:47
Re: Not megalithic 145 Origyptian 16-Nov-17 02:43
Re: Not megalithic 226 Origyptian 14-Nov-17 21:58
Re: Not megalithic 192 Jon Ellison 14-Nov-17 22:14
Re: Not megalithic 160 Origyptian 14-Nov-17 22:38
Re: Not megalithic 140 Thanos5150 14-Nov-17 22:55
Re: Not megalithic 199 Thanos5150 14-Nov-17 23:02
Re: Not megalithic 125 Audrey 14-Nov-17 23:46
Re: Not megalithic 183 Corpuscles 15-Nov-17 00:09
Re: Not megalithic 192 Audrey 15-Nov-17 01:15
Re: Not megalithic 211 Thanos5150 15-Nov-17 00:26
Re: Not megalithic 180 Corpuscles 14-Nov-17 22:47
Re: Not megalithic 182 Warwick 15-Nov-17 02:47
Re: Not megalithic 214 Audrey 15-Nov-17 04:06
Re: Not megalithic 137 Warwick 18-Nov-17 00:59
Re: Not megalithic 185 Racho 15-Nov-17 06:26
Re: Not megalithic 214 Warwick 18-Nov-17 01:01
Re: No other explanation ...high tech 289 Origyptian 12-Nov-17 14:37
Re: No other explanation ...high tech 302 Corpuscles 12-Nov-17 17:48
There Has Never Been Solid Ground 247 cladking 12-Nov-17 19:10
Re: There Has Never Been Solid Ground 214 Corpuscles 12-Nov-17 20:06
Re: There Has Never Been Solid Ground 213 cladking 12-Nov-17 20:55
Re: There Has Never Been Solid Ground!!!!!!!!!!! 212 Corpuscles 12-Nov-17 21:26
Re: There Has Never Been Solid Ground!!!!!!!!!!! 241 cladking 12-Nov-17 21:42
Facinating 214 Warwick 14-Nov-17 20:23
Re: Facinating 187 cladking 14-Nov-17 21:33
Re: Facinating 204 Warwick 15-Nov-17 02:51


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