Tnisesm 8-Piece Copper Tubing Bender Kit

The Tnisesm copper tubing bender kit is a set of internal PE bending strips for four stated tubing sizes. Its eight-piece configuration provides two strips per size, with each strip claimed to measure 4 meters.

At a glance

Two strips are specified for each of four sizes, with colors assigned by size for quick identification.
The internal-strip design is intended for bends inside copper tubing, including HVAC and refrigeration line work.
Listing claims the PE strips are flexible and reusable.

Price

$47.99Save 16%

Reference price: ~~$56.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Eight strips provide two for each listed tube size, so the kit includes a spare per size according to the product description.
Four stated sizes cover a range of common HVAC line tubing dimensions.
The color coding links each strip to a stated size.

Technical specifications

5 specifications

Identity
Brand	Tnisesm

Kit and fit
Kit configuration	8 bending strips-2 strips for each of the four most common HVAC pipe sizes: 1/4" (red), 3/8" (green), 1/2" (yellow), and 5/8" (blue).
Length per strip	4 meters
Material	PE plastic
Bending design	Internal placement

What to know before buying

Listing details to confirm

The listing identifies the four sizes as 1/4, 3/8, 1/2 and 5/8 inches and describes two strips per size. The separate item-highlight field formats the size sequence differently, so confirm sizing and the selected kit details before purchase. The 4-meter length is stated per strip.

What’s in the box

Included

Line set bender

Who is it for?

A good fit for

HVAC or refrigeration line repair involving copper tubing in one of the four listed sizes.
Buyers who want internal bending strips with two per listed size.

Less suited to

Buyers needing a hand-operated external tube-bending tool or sizes beyond those listed.

Tnisesm 8-Piece Copper Tubing Bender Kit · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 121 ratings

5 stars77%77%
4 stars14%14%
3 stars7%7%
2 stars1%1%
1 star1%1%

Customer feedback is positive about functionality, quality, bending ability, ease of use and preventing kinks. Some comments describe use with long line sets and mini-split pipe, which is relevant to the listed internal-strip format and 4-meter length. These experiences do not establish performance for every tube size or installation. The overall rating distribution is mostly five-star, with a smaller spread across lower star categories, so experiences are not uniformly positive.

Positive themes

Customer feedback praises functionality and build quality.
Feedback highlights bending ability, ease of use and kink prevention.

Frequently asked questions

What tubing sizes are listed?

The kit description lists 1/4, 3/8, 1/2 and 5/8-inch tubing. A separate item-highlight field presents the order differently, so confirm the fit details on the selected listing.

How many strips are described?

The product description claims eight strips, two for each of the four listed sizes.

How long is each strip?

The listing states 4 meters per strip.

What is the bending method?

The strips are designed to sit inside copper tubing while it is bent. Claims about kink-free results and preserving tube shape are manufacturer claims, not independently verified.