Efficiency Enhancer: This Center-It Drill Press Block ensures you no longer struggle trying to drill a hole in a piece of round tubing, making your work more efficient and precise., Universal Centering: Once set up, this tool is centered for all sizes, reducing the time and effort required for adjustments between different sizes of round tubing., Compact Dimensions: With a 5″ x 4″ base and a 1.75″ overall height, this tool is compact and easy to manage, making it an ideal addition to your fabrication setup., Bolt Hole Spacing: The center-to-center spacing of the bolt holes is 3.5″ x 3″, providing compatibility with a variety of drill press setups., Fabrication Essential: This tool is a must-have for fabricators, making the process of drilling holes in round tubing quicker, easier, and more.