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Replacement brake line usually comes in a coil. Straightening it by hand leaves small waves and kinks that look untidy and make bends harder to place. A roller straightener pulls the tube through a set of rollers so it comes out straight.
Quick verdict
- Best for: DIYers making new brake, fuel or transmission lines from coiled tubing.
- Type: handheld roller straightener (Eastwood part 33911).
- Strengths: two sizes in one tool, steel rollers, small enough to hold in one hand.
- Watch out for: only 3/16 in and 1/4 in tubing; not for 5/16 in or 3/8 in.
Key features
- Straightens 3/16 in and 1/4 in tubing, which covers most brake lines.
- Works on steel, stainless steel, aluminum and copper tubing, including copper-nickel.
- Durable steel rollers for repeatable results.
- Thumb switch to change between tube sizes.
- One-year Eastwood warranty.
How to use it
- Uncoil a little more tubing than you need.
- Set the switch for your tube size and feed the end in.
- Pull the tool along the tube in smooth strokes.
- Cut to length, deburr, fit tube nuts, then flare.
- Bend with a proper bender to avoid kinks.
Pros and cons
Pros
- Professional-looking straight runs
- Easier to route lines along the chassis
Cons
- Limited to two tube sizes
- Very hard tubing takes more effort
Pair it with the Eastwood triple head tubing bender for complete brake line work.
Safety note: brakes are safety parts. If you are not sure how to do the job, have a qualified mechanic do it.