I am trying to locate a hole saw extension/drive shaft to install a service mast.

http://www.nextag.com/Lenox/drill-bit-extension/brand-html

I find these work for me.

Milwaukee makes them in many lengths

If your hole saw arbor has a round shaft, with flats milled on it, it will not fit properly in a Lenox or Milwaukee extension. Those extensions are for true 'hex' shanks.

Greenlee extensions, however, fir the arbors with the rounded shoulders.

Try this, its on ebay and it looks like a good idea?

Denny


http://cgi.ebay.com/Adjustable-Leng...933QQssPageNameZWDVWQQrdZ1QQcmdZViewItem