A: It cannot be used in a standard 1/2 " chuck.
A: Hi Tom, this auger has a ball groove shank
A: Thank you for your recent inquiry with The Home Depot, CR. The 1 1/4".diameter is the largest we currently carry. We do carry bits as long as 17", which you can view those here: http://www.homedepot.com/b/N-5yc1v/Ntk-All/Ntt-Power%2BShip%2BAuger%2BBit?NCNI-5&isSearch=true&style=Grid We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
A: It is able to drill into a tree stump