Adjustable Tubing Straightener 3/16″–3/8″
Achieve perfectly straight brake, fuel, and hydraulic tubing every time with the 4LifetimeLines® Adjustable Tubing Straightener. Designed for 3/16″ through 3/8″ tubing, this precision tool takes the guesswork out of line preparation—no more kinks, no more wasted material, just smooth, consistent bends ready for flaring or installation.
Why You Need an Adjustable Tubing Straightener
A kinked or misaligned line can compromise system performance and lead to leaks, uneven flow, or premature wear. Whether you’re working with copper-nickel brake lines, marine-grade stainless tubing, or OEM steel lines, our straightener’s adjustable rollers guide the tube through six hardened-steel wheels that gradually remove coil set and straighten curves. The result is a reliable, factory-quality run every time, reducing rework and keeping your project on schedule.
Key Benefits
Versatile 3/16″–3/8″ Range
One tool handles the full spectrum of common tubing diameters, from 3/16″ brake lines to 3/8″ transmission and fuel lines.
Smooth, Kink-Free Finish
Hardened-steel rollers eliminate dents and maintain tubing integrity so your flare tools seat perfectly.
Heavy-Duty Construction
An anodized-aluminum frame and sealed bearings stand up to shop use—no rust, minimal maintenance.
Easy Adjustment
A thumb-wheel tensioner lets you dial in straightening pressure for different alloys, from soft CuNi to rigid stainless.
Compact & Portable
Weighing under 3 lbs with a built-in hanging hook, it fits easily on any workbench or in a tool chest.
How to Use
Set the tension wheel to the tubing diameter and material hardness.
Slide the tube into the first set of rollers and squeeze the handles.
Feed the tubing through, guiding it between the subsequent rollers for a uniform result.
Inspect for straightness and repeat if necessary—most coils straighten in two or three passes.
Perfect for Professionals & DIYers
From performance-build shops to backyard wrenchers, the Adjustable Tubing Straightener 3/16″–3/8″ saves time and material. Pair it with our Universal Hydraulic Flaring Set and tubing coils for a complete brake-line fabrication solution.
Ready to eliminate kinks and elevate your brake- and fuel-line work? Add the Adjustable Tubing Straightener to your cart today and experience smoother installations tomorrow.
