Api Test Tubes

[Weeb Snail]

Ok, so I want to get a test tube rack/holder for my API test tubes.
It says that they are 13 millimeters in diameter.
What test tube rack would fit these well?
I think that a 9/16 inch diameter test tube holder would work good,
Since 13 mm is equal to 0.511811 inches, and 9/16 inches in diameter is 0.5625

Anybody know a good test tube holder that I can get for cheap?

 

[david1978]

A piece of 2x4 and a 13 mm drill bit.

 

[Cichlidude]

A piece of 2x4 and a 13 mm drill bit.

Way too complicated.

 

[Fishcat]

If you have a look at the Buy, Sell, Trade, Free forum, PonzLL has 3D printed test tube racks that include spots for the tubes and caps to drip dry.

 

[DarkOne]

Spare 2x4. I originally drilled for just the tubes but realized that they don't dry with the tops on them so I made another one with space for the tops. I used a forstner bit on the 2nd try so the bottom of the holes are flat.

 

[Weeb Snail]

Spare 2x4. I originally drilled for just the tubes but realized that they don't dry with the tops on them so I made another one with space for the tops. I used a forstner bit on the 2nd try so the bottom of the holes are flat.
View attachment 504393

View attachment 504394

Oh that looks cool! Ill try tk make that sometime!