PH Horn Boring Bar Insert Holder. The item "PH Horn Boring Grooving Threading Bar Insert Holder LBU18.0625.01 Carbide Shank" is in sale since Saturday, May 27, 2017. This item is in the category "Business & Industrial\Manufacturing & Metalworking\Metalworking Tooling\Toolholding\Indexable Inserts". The seller is "bratex_llc" and is located in Johnson City, New York. This item can be shipped worldwide.