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How To Make A Hole In Airline Tubing?

I'm trying to make a hole about a millimeter in diameter in the side of a piece of standard airline tubing.  I've tried poking a heated needle through the side, but the hole was too small and the heat warped the plastic.  How should I do this without destroying the tubing?

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Toga_Dan3 years ago

the tubing is that flex plastic abot 1/4 in in dia?

Toga_Dan3 years ago

one can buy fine drill bits, but if none is on hand, you can make one by grinding a flat on the side of a needle. you basically remove 1/2 the cross section. C|

El Mano (author)  Toga_Dan3 years ago

I'll have to try that and see if it works. Thanks.

El Mano (author)  El Mano3 years ago

A drill bit worked, but not very well. Instead, I took the casing from a disposable ball point pen and drilled a hole in the side of that, which worked much better, and then glued the airline tube to the pen casing.

Toga_Dan3 years ago

your drill chuck may or may not close down to somethin as small as a needle (or a mm) you may wanna find a pin-vice (google it, or try hobby store)) Although these are designed to let u drill with just twisting yer fingers, I have used 1 by chucking the needle in the pin-vice, and the other end of pin-vice in my drill.

Kiteman3 years ago

Have you tried drilling?

I'm pretty sure you can get fine wood-bits down to 1mm.