http://tinyurl.com/otq3b65<P>Hitachi 724926 SDS Max 2-5/8-Inch x 11-3/8-Inch One Piece Hollow Core BitProduct Review<P> Click on the link for more reviews<P>Roof Shaped Guide Teeth<P>Flat Hammer Teeth<P>Increased Durability<P>Performance Increase Exceeding 30%<P>Hollow core bit measures 2-5/8-inches in diameter and 11-3/8-inches<P>
