DORIAN D35CXA-41 BORING BAR HOLDER AND KENNAMETAL 1 1/4 THRU COOLANT INDEXABLE BORING BAR. This DORIAN TOOL KENNAMETAL Quick Change Tool Post is a reliable and sturdy option for your CNC, Metalworking & Manufacturing needs. Made in the United States, it comes with a D35CXA-41 Boring Bar and can hold up to 1 1/4 in diameter. The tool post type is a Quick Change Tool Post, making it easy to switch between tools as needed. This item is perfect for those in the business and industrial field, specifically those in workholding and toolholding.