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Ridgid 35255 D-1377 Spring-Type Tube Bender, 3/8 in.
The Ridgid 35255 D-1377 Spring-Type Tube Bender is a pack of 6 spring benders designed for fast, free-form bending of soft copper and aluminum tube on the job site. Each bender in the set accommodates a 3/8" (9mm) actual O.D. tube size capacity and measures 10" (250mm) in length, giving installers a compact, easy-to-handle tool for shaping tubing by hand without the need for a mechanical bending device. Sized in both inch and metric measurements, this Ridgid spring bender set is built for plumbers, HVAC technicians, and electricians who need a reliable way to form clean, kink-free bends in soft tubing quickly and repeatedly.
Key Features
- Trade Size: 3/8" (9mm) actual O.D. tube size capacity, sized for common soft copper and aluminum tubing used in plumbing and HVAC work.
- Compact Length: 10" (250mm) overall length for easy handling and maneuverability in tight spaces around fixtures and equipment.
- Inch and Metric Sizing: Marked in both inch and metric measurements for straightforward reference on any job.
- Free-Form Bending: Enables fast, free-form bending of soft copper and aluminum tube without a dedicated bending machine.
- Lightweight Design: Each unit weighs approximately 1 lb. (0.5 kg), keeping the tool light and easy to carry in a service bag or tool pouch.
- Multi-Pack Value: Sold as a pack of 6 spring-type benders, giving technicians spares on hand for multiple jobs or crew members.
Technical Specifications
- Length (in.): 10
- Tube Size Capacity (actual O.D.) (mm): 9
- Weight (kg): 0.5
- Weight (lb.): 1
- Length (mm): 250
- Tube Size Capacity (actual O.D.) (in.): 3/8
- Model No.: D-1377
Typical Applications
- Plumbing Tube and Pipe Installations
- HVAC Refrigerant Line Bending
- Soft Copper and Aluminum Tubing Fabrication
- Field Service and Repair Work
- New Construction and Renovation Projects
Why Ridgid?
Ridgid tools are trusted by trade professionals for durable, purpose-built designs that hold up to daily job-site use. The D-1377 spring-type tube bender set delivers the precise, inch-and-metric sizing and compact form factor technicians need to make fast, accurate bends in soft copper and aluminum tube without extra equipment. With six benders included, this Ridgid pack keeps your crew equipped and ready for plumbing and HVAC tubing work.
Manufacturer Resources
Product Specs
- list_batch:
- RID-20260924
- Product Type:
- Tube Bender
- Series:
- D-1377
- Department:
- Electrical
- Product Subgroup:
- Conduit Benders
- Product Size:
- 3/8"
- Product Group:
- Electrical Installation Tools
Ridgid 35255 – Frequently Asked Questions
1) Will the Ridgid D-1377 spring bender work on 3/8 inch copper tube, and is that measured O.D. or nominal?
The D-1377 handles 3/8 inch (9 mm) actual outside diameter tube. That is the real O.D. of the tubing, not a nominal plumbing size, so a tube that measures 3/8 inch across with a caliper is the right match. Soft copper and aluminum only.
2) How many spring benders come in the Ridgid 35255 order?
One order of the 35255 is a pack of six D-1377 spring benders, all the same 3/8 inch size. It is not a graduated set of different sizes, so if you need other tube diameters you order those models separately. The six-count works out well for crews, since each tech can carry one.
3) Do I use a spring bender or a lever-type tube bender for soft copper?
A spring bender like the D-1377 slips over the tube and lets you form the bend free-hand, anywhere along the run, with no set radius and no machine. That is what you want for quick field bends in soft copper and aluminum. A lever or ratchet bender gives you a fixed, repeatable radius and the leverage to work harder tube, which matters on spec work or stiffer material. The spring is lighter, cheaper to keep several of, and fits where a lever bender won't.
4) Can I use the D-1377 spring bender on refrigerant lines?
Yes, HVAC refrigerant line bending is one of its listed applications, as long as the line is soft copper or aluminum at 3/8 inch actual O.D. Hard-drawn copper is not what a spring bender is for.
5) Is a 10 inch spring bender long enough to work near a fixture or in a tight joist bay?
The D-1377 is 10 inches (250 mm) long overall, which covers the bend zone and still leaves you room to work in cramped spots around fixtures, air handlers and equipment. Each one weighs about 1 lb (0.5 kg), so it lives in a service pouch without any trouble. Note the spring only supports the length it covers, so plan your bend to fall inside that 10 inches.
6) Will the spring bender keep 3/8 copper from kinking?
That is the whole point of it. Sliding the spring over the tube supports the wall through the bend so the tube deforms evenly instead of collapsing, which is how you get clean, kink-free bends in soft copper and aluminum by hand. Bend gradually and work the spring off with a twist when you're done.
7) Is the Ridgid D-1377 marked in metric as well as inches?
Yes. The sizing is given in both inch and metric, 3/8 inch and 9 mm O.D. capacity with a 10 inch (250 mm) length, so it reads straight off against either set of drawings or tube stock.
How fast can I get the Ridgid 35255 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ridgid 35255 come with a warranty?
Absolutely. The Ridgid 35255 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ridgid 35255?
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