Will this work?

[PlumberInTheMaking]

Hi,

I've got a 10mm drill chuck

70mm holesaw

and this

Hex Shank Holesaw Arbor 9.5mm

Use 9.5mm hex shank for 14-21mm holesaws and 11mm quick hitch for 32-152mm holesaws.[/b]

 

[Burnerman]

If the arbor fits in the chuck, and the arbor connects to the hole saw, then sure......usually the bigger hole saw arbors need a 13mm chuck though.
John

 

[PrenticeBoyofDerry]

11mm into 10mm, is that a trick question?
Has this not already been discussed?
Doesn't matter how many times you ask the question, the answer will remain the same.
Bigger chuck required!

 

[catlad]

It may seem annoying to you but the purpose is to stop you busting your drill as its not rated for that purpose, idiot proof you might say.

 

[maltaron]

You can forget 70mm holes with a drill with a 10mm chuck. I dought that it would have the power to even start the cut. I almost stalled a 24 volt heavy duty Hitachi drill with 63mm hole saw in wood. I would think for your work you would need a proper core drill setup.