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Forstner bit extension

I'm aiming to make some tall hollow forms and want to start the hollowing with a forstner bit. Anyone know where - in the UK- I can get extensions for forstner bits (which have 5/16" or 8mm shafts)? The extension bars for flat bits don't fit.

TIA

Ian

Reply to
Ian Malcolm
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Hi Ian

If it was me, as you have a lathe, I would get a 1/2" or 14mm length of cold rolled steel, chuck it up in the lathe and drill a fitting size hole in there, drill another small hole to cut thread into for a grub/setscrew, that's all you need, then a small flat spot on the forstner bit shaft and you have what you want, (at low cost).

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Have fun and take care Leo Van Der Loo

Reply to
l.vanderloo

Ian,

Try

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or
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Good luck.

BillR

Reply to
BillR

Reply to
l.vanderloo

I agree. I use one of these.

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All I need is a hole down the middle to give the hollowing tool a start and prevent the kick you get from trying to start the cut in end grain.

Reply to
BillR

dimar make them, I had to special order mine in and it was very expensive.

Reply to
woodturningcreature

Many thanks for the replies. Leo, I think this is probably the way I will go.

Ian

Reply to
Ian Malcolm

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