Handheld Tubing Straightener

MERWOF's 3/16" Handheld Tubing Straightener is a compact, lightweight tool built to quickly smooth kinks and coils in 3/16 inch outer-diameter copper, brass, aluminum, and steel tubing.

This handheld straightener combines a durable aluminum-alloy inner roller with a grippy ABS outer housing to deliver consistent, controlled straightening for brake lines, fuel lines, refrigeration tubing, and general plumbing coils. At just 5.3 x 2.9 inches and about 1 pound, it fits comfortably in a toolbox or on a workbench, making it easy to use on-site or in the garage. The green-and-black styling helps it stand out so you can grab it quickly during a job.

How does this tool make bent tubing usable again?

The MERWOF straightener reintroduces a smooth, even curvature to tubing by feeding the pipe through an aluminum roller set inside a multi-piece ABS housing. The roller supports the tube while the outer shell controls pressure and alignment, reducing twist and flattening caused by coils or light kinks.

• Feeds 3/16" OD tubing evenly across the roller for uniform straightening
• Aluminum alloy roller resists wear and maintains shape under repeated use
• ABS housing keeps the tube aligned and offers anti-slip handling

What materials and tubing sizes can I use it with?

This unit is specifically designed for 3/16 inch outer-diameter tubing and works well with soft to moderate-strength metals commonly used for lines and coils. It is appropriate for copper and brass tubing, as well as softer aluminum and many thin-walled stainless or steel coils used in small-diameter lines.

• Optimized for 3/16" OD tubing only — ensures proper contact and pressure
• Compatible materials: copper, brass, aluminum, thin stainless/steel
• Not intended for heavy-wall industrial pipe or larger diameters

How easy is it to operate and carry on a jobsite?

Operation is straightforward: insert the tube, apply gentle tension, and pull through the roller while guiding the tube straight. The small footprint and roughly 1-pound weight make it easy to hold in one hand and use in confined spaces, and its durable construction survives daily workshop use.

• Compact 5.3 x 2.9" size fits toolboxes and pockets
• Lightweight design reduces operator fatigue during repeated use
• Textured ABS housing provides a secure hold for one-handed work

What maintenance or care does the straightener need?

Maintenance is minimal: keep the roller and housing free of debris, avoid dropping the tool onto hard surfaces, and inspect the roller for deep scratches that could mark tubing. Periodic cleaning and light lubrication of the roller bearing (if accessible) will prolong service life.

• Wipe clean after use to remove metal shavings and grime
• Check roller for wear; replace if grooves or burrs appear
• Store in a dry place to protect ABS housing and roller integrity

Who is this for? The MERWOF 3/16" Handheld Tubing Straightener is ideal for mechanics, HVAC technicians, plumbers, hobbyists, and anyone who works with small-diameter metal tubing and needs a portable, reliable way to eliminate coils and light kinks. If you frequently prep brake lines, fuel lines, refrigeration tubing, or small plumbing runs and want a simple, durable hand tool that fits in a service bag, this straightener provides focused performance without taking up space.

What’s included: one MERWOF 3/16" Handheld Tubing Straightener. Note: sold as a single tool; other plumbing accessories shown or referenced are not included.