Dust extraction of micro perforated sanding discs?

[flanajb]

I have a bosch orbital sander with a 6 hole extraction pad and I wonder whether using micro perforated discs with such a setup means I will get poor dust extraction compared to a standard 6 hole disc. Logic would suggest you will, but thought I would get the thoughts of others. The discs I use are here

http://www.abtec4abrasives.com/150mm6-m ... 1860-p.asp

Maybe you can get a micro perforated sanding pad for the Bosch?

 

[RobinBHM]

I think I would prefer Abranet discs instead of these.

 

[marcros]

+1 on abranet

 

[woodbrains]

Hello,

I've used the micro perf discs and there doesn't seem to be any difference in extraction. In fact it is possibly slightly improved. I think the point of them is, they are a universal fit, since some makes of sander use different hole layouts, these will fit all. I do find the small holes are less susceptible to tearing, I've caught the big holes on corners and torn discs like that. I do tend to use my ROS for rougher work, though, so this might not be an issue.

Mike.