Diameter tolerance: + 0.001. Multi function, easy to assemble and disassemble. Fit for Mohs, ER , Drill chuck. Make sure your Address is correct. The item "CNC Lathe Machine Knife Holder Inner Diameter 16-50mm Boring U-Assisted Tool NEW" is in sale since Saturday, March 28, 2020. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Metalworking Lathes". The seller is "jtck5433" and is located in cn. This item can be shipped worldwide.