Annular cutters?

Annular cutters with weldon shanks.. what are they good for? Opening
out holes before boring?
Reply to
Spehro Pefhany
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Boring holes in structural steel with a mag drill.
Reply to
Pete C.
I use them all the time for cutting large holes on the mill before switching to a boring head. They're also the best way to pop the 22mm or 30mm holes for oiltight switches in a control panel or NEMA box, if you can fit the work on a Bridgeport.
Reply to
Ned Simmons
I've not tried that but I have used one with a guide to remove the weld seam inside pipe, also they seem to work well for scalloping one pipe to fit another. For the latter use I've just held them in a 3/4" collet in a Bridgeport mill.
Reply to
David Billington
Cool. Thanks to everyone. I'll have to give them a try.
Best regards, Spehro Pefhany
Reply to
Spehro Pefhany

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