Double bar holder permits a greater boring range without an extreme offset condition. 1 division is equaled to 0.001 travel in diameter.3/4 boring bar set 8 pcs. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Toolholding\Other Toolholding". The seller is "discount_machine" and is located in this country: US. This item can be shipped to United States.