This is a 1" Boring Head w/ 3/4" Shank. Distance Between Hole Centers: 1-1/4. Comes exactly as shown in pictures.This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Toolholding\Adapters & Holders\Boring Head & Adapters". The seller is "xpresstoolsinc" and is located in this country: US. This item can be shipped to United States.