20,000 to 24,000 depending on air pressure. Here you can get them from Harbor Freight for $10 to $20. At home I run it on a 2 stage 220 volt compressor and don't run out of air. We bought a $99 HF compressor to leave in FL with the boat there and it runs on 110 and runs out of air after probably 30 seconds or so. Then wait a minute and start again.
The nice thing is that compared to trying to use a dremel it is very fast cutting and will remove a lot of material fast.
Thanks Sumner. My dremmel 'look alike' is variable speed and does 8,000 - 35,000 revs. Sounds like I need to either use higher speed or larger bits. I did buy a set of good quality bits and they are larger than those that came with the machine but still not as large as what you use on the DG.
I have been looking at buying a compressor for a long time now. An air sander would be great when I get around to taking the bottom paint off as I could use water with the machine. Have a good RUPES sander but not game to put water anywhere near it - also suspect it may run a bit too fast (does 7,00 rpm) to be using on fibreglass. Have also recently spoken to a guy who runs a rattle gun off his compressor for getting rust off steel trailers and things - uses water to keep down the dust and says it work like a dream. Would also be great of course to be able to run a spray gun and have the air for cleaning up.
Up until the last few years ago we have paid through the neck for this stuff in Australia but the boom in Chinese manufacturing and web retailing has put a LOT of downward pressure on prices. Aldi supermarkets have also entered the Australian market over the last 10 years and often offer some good value for money equipment from time to time - they had air chisels on sales recently for about $15.
as my current 'el cheapos' are not up to doing fibreglass, particularly on boats where the holes are inevitably in places where looks count.
