Jackel
Here is a link to the auger Quick Attach /Erskine sells.
http://www.skidsteer.ca/19earthauger.pdf
443 kbs, takes a minute on dial up.
Just incase you don't want to wait for the catolog to come.
All their products are on my website, just under the Erskine name.
I have a Bobcat model 15c with 12 and 18" dia bits (had them before I became involved with Erskine) and it works well in our heavy clay and gravel soils. They have plenty of torque and can turn bits in the 30 to 36" diameter. At times I can stall the 18", but often I can wind it in the ground like a anchor. Unless your drilling shale or through frost, they go in the ground almost to good. You can exceed the lift capacity of your loader and may have to reverse them a bit, them lift the auger out. Stones are usually no problem up to 5 or 6", the larger bits bring them up better as there is more room in the flighting.
If you would like a quote on the drive unit, bit(s) and freight to your zip code, just shoot me a email and I'll get you a figure.
Ken
[email protected]