Took bloody ages to find this thread again Dave
I have a couple of cheap throw-away holesaw sets
I also have quite a few more Expensive bimetal hole saws in various sizes.
They are great for fabing up a cylinder spacer or end cone for a silencer or whatever making a wooden pattern(I have no mill)
I always seem to have the wrong size in bimetal and end up buying an another one at 30-80 bucks realistically I could have brought a mill by now.
So I seen one of these on the net $10 or so. \It will likely be crap but up to 120mm in whatever size I want. should be fine on wood or alloy
http://www.trademe.co.nz/building-re...-958209093.htm
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