[Cory]

Originally Posted by matthewdenny

How many collets would we need? I'm not sure I understand why you need more than 1. Don't you take it out, change the tool and put it back? Also does anyone know of a source (other than eBay, which the school won't use) for B&S #9 collets?

You need one for every size tool you intend to use. A standard set of R8 collets would be 1/16 to 7/8" in 1/16" increments. I dont know much about brown and sharpe collets but a quick googling shows they can be bought here You'll also want a drill chuck. For that you should be able to buy any drill chuck and then a B&S #9 to jacobs taper adapter and mate the two.