Kaiser CAT40 Boring Head 315.605 TWV68xCK6B on 11.326.462 SC 80098/02-016 shank. I believe the boring range to be 68-90mm or 2.67717" to 3.54331". This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Toolholding\Adapters & Holders\Boring Head & Adapters". The seller is "nujik" and is located in this country: US. This item can be shipped to United States, Canada.