To resurrect an old thread, I ordered 2-6' lengths of tube for large pistol primers from McMaster Part # 89965K39 stating it's the same # as 89965K471. https://www.mcmaster.com/89965K39 ID .215" Got them in and the ID was .211 primer wouldn't even fit. I called them and said he would measure them himself before the replacement shipped, and the next delivery was the same! Come to find out Grainger has 1" lengths 5-16" OD with .214 ID. $2.76 each. https://www.grainger.com/product/GRAINGER-APPROVED-Tubing-48KU65 the tube wall seems a little thicker, but it works great and saves the trouble of cutting down a 6" tubes! Tube on the left is from Grainger.