Metric Tube and Pipe Dies

Most tube and pipe manufacturers forge their materials to conform to the specifications of the International Standards Organization (ISO). While distributors refer to their products as metric sized, it may not measure according to how it’s labeled. For example: 25 mm tubing doesn’t usually have an outside diameter of 25 mm; it’s true outside diameter is 25.4 mm. You can refer to the chart below for the most common sizes. It’s important to know the actual outside diameter of your material before ordering a die. Using the example from above: if you order a 25 mm die and what you really have is 25.4 mm tubing, your material won’t fit in the die and you won’t be able to bend it. The outside diameter of the material must be measured with accurate calipers if you’re not sure what the true outside diameter is. Feel free to order one our standard dies by matching up your tubing to the charts below. In the case that you do have true metric tubing, we would be happy to make a custom die for you. If you’re still confused, give our expert technical sales team a call at +1 (813) 986-9000; we're happy to help you out with any questions.