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Machinist's Workshop

Industrial Press


Tubing Straightener

By Jon Anderson

Brake line typically comes in either 6 or 8 foot lengths. If you want a longer piece, you have to buy a 25 foot coil. These long coils are difficult to straighten out and require the use of a commercial tool to do so. Since the commercial tool costs about $200, I decided to make my own.

I took some sliding door wheels (at about $3 each), some square thin-wall tube, clamped it all in the vise, and presto – an inexpensive straightener!


This tool works great, but if I ever decide to build another one I will put the wheels closer together to get the last little waves out of the brake line.

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