---
product_id: 148731480
title: "K&S Precision Metals Round Copper Telescopic Tubing Assortment 3404 – 7 Tubes, 1/16\" to 1/4\" OD, 12\" Length, 0.014\" Wall – DIY Projects, Made in USA"
brand: "k & s precision metals"
price: "€ 33.30"
currency: EUR
in_stock: true
reviews_count: 13
category: "K & S Precision Metals"
url: https://www.desertcart.nl/products/148731480-k-and-s-precision-metals-round-copper-telescopic-tubing-assortment
store_origin: NL
region: Netherlands
---

# 7 tubes, 1/16" to 1/4" OD Telescopic sliding for custom lengths Made in USA, premium alloy 122 copper K&S Precision Metals Round Copper Telescopic Tubing Assortment 3404 – 7 Tubes, 1/16" to 1/4" OD, 12" Length, 0.014" Wall – DIY Projects, Made in USA

**Brand:** k & s precision metals
**Price:** € 33.30
**Availability:** ✅ In Stock

## Summary

> 🔧 Unlock Infinite Possibilities with Precision Copper Tubing!

## Quick Answers

- **What is this?** K&S Precision Metals Round Copper Telescopic Tubing Assortment 3404 – 7 Tubes, 1/16" to 1/4" OD, 12" Length, 0.014" Wall – DIY Projects, Made in USA by k & s precision metals
- **How much does it cost?** € 33.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/148731480-k-and-s-precision-metals-round-copper-telescopic-tubing-assortment)

## Best For

- k & s precision metals enthusiasts

## Why This Product

- Trusted k & s precision metals brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Lengths on Demand:** Telescopic design lets you adjust tube length seamlessly—engineer your vision without limits.
- • **STEM-Ready & Educational:** Perfect for engineering demos and hands-on learning—turn concepts into tangible creations.
- • **Elevate Your DIY & Decor Game:** Ideal for custom furniture, lighting, and artistic installations that demand both function and flair.
- • **Crafted from Premium Alloy 122 Copper:** Durable, corrosion-resistant copper ensures your projects stand the test of time and style.
- • **Precision Assortment for Every Project:** 7 tubes ranging from 1/16" to 1/4" OD, perfectly sized for versatile DIY creativity.

## Overview

K&S Precision Metals Round Copper Telescopic Tubing Assortment offers 7 high-quality copper tubes from 1/16" to 1/4" OD, each 12" long with a 0.014" wall thickness. Made in the USA from alloy 122 copper, these telescoping tubes provide adjustable lengths for versatile DIY, craft, lighting, and engineering projects, combining durability with precision for professional and creative applications.

## Description

"Our Materials, Your Creations" Most Common Uses: DIY Projects (Jewelry, Home Décor, Tinkering, ETC...), Model Making (Trains, Planes, R/C Cars, Etc...), Arts & Crafts, Home Improvement, Electrical, Woodworking, Engineering, Education, Puppetry/Stop-Motion Animation

Review: Well made - These aluminum tubes are well made and are just what I needed to fit into the little hole at the end of the spray nozzle for yellow jacket spray
Review: It is grate - They are made of copper. The 3/16” O.D. Pipe fits in the hole I need it to nice and tight, like O.J.s glove fit. It arrived on early, which means to me they did not dither at the facility, and that it was in stock in the United States of America.

## Features

- Complete Copper Telescopic Assortment: Includes 7 precision round tubes ranging from 1/16" to 1/4" OD, each 12" long with 0.014" wall thickness, crafted from alloy 122 copper.
- Adjustable & Versatile Design: Telescopic tubes slide into one another for variable lengths and custom configurations, ideal for DIY, craft, and engineering projects.
- DIY & Home Projects: Build custom furniture, curtain rods, shelving units, or other creative designs where adjustable copper tubing adds style and functionality.
- Custom Lighting & Decorative Applications: Use tubing to design unique lighting fixtures or decorative elements, adjusting length and configuration for the perfect fit.
- Educational & Engineering Uses: Excellent for science demonstrations, engineering projects, or structural studies, allowing exploration of telescoping mechanisms and material properties.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VPWSJRC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #40,680 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #38 in Industrial Metal Tubing |
| Brand | K & S Precision Metals |
| Color | Copper |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,108) |
| Date First Available | August 22, 2019 |
| Finish | Copper |
| Global Trade Identification Number | 00614121034044 |
| Included Components | 7 Copper Tube Assortment |
| Item Length | 12 Inches |
| Item Package Quantity | 1 |
| Item Weight | 3.2 ounces |
| Item model number | 3404 |
| Manufacturer | K & S Precision Metals |
| Material | Copper |
| Measurement System | inch |
| Nominal Wall Thickness | 0.014 inches |
| Outside Diameter | .5 Inches |
| Part Number | 3404 |
| Product Dimensions | 12"L x 5"W |
| Shape | Round |
| Size | No Size |
| Style | Copper Assortment |
| Thickness | 0.01 Inches |
| UPC | 614121034044 |
| Warranty Description | Warranty |

## Product Details

- **Brand:** K & S Precision Metals
- **Color:** Copper
- **Item Length:** 12 Inches
- **Item Weight:** 3.2 ounces
- **Manufacturer:** K & S Precision Metals
- **Material:** Copper
- **Nominal Wall Thickness:** 0.014 inches
- **Outside Diameter:** .5 Inches
- **Product Dimensions:** 12"L x 5"W
- **UPC:** 614121034044

## Images

![K&S Precision Metals Round Copper Telescopic Tubing Assortment 3404 – 7 Tubes, 1/16" to 1/4" OD, 12" Length, 0.014" Wall – DIY Projects, Made in USA - Image 1](https://m.media-amazon.com/images/I/51H-JIrpCJL.jpg)
![K&S Precision Metals Round Copper Telescopic Tubing Assortment 3404 – 7 Tubes, 1/16" to 1/4" OD, 12" Length, 0.014" Wall – DIY Projects, Made in USA - Image 2](https://m.media-amazon.com/images/I/61qHHUlTYCL.jpg)
![K&S Precision Metals Round Copper Telescopic Tubing Assortment 3404 – 7 Tubes, 1/16" to 1/4" OD, 12" Length, 0.014" Wall – DIY Projects, Made in USA - Image 3](https://m.media-amazon.com/images/I/61X1MSM1xLL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made
*by R***Y on September 27, 2025*

These aluminum tubes are well made and are just what I needed to fit into the little hole at the end of the spray nozzle for yellow jacket spray

### ⭐⭐⭐⭐⭐ It is grate
*by D***N on January 16, 2026*

They are made of copper. The 3/16” O.D. Pipe fits in the hole I need it to nice and tight, like O.J.s glove fit. It arrived on early, which means to me they did not dither at the facility, and that it was in stock in the United States of America.

### ⭐⭐⭐⭐⭐ Quality stuff, great fit.
*by R***K on September 7, 2024*

These do perfectly fit into eachother, telescopicly. This allowed me to adapt to another size tube, perfectly.

## Frequently Bought Together

- K&S 3404 Round Copper Telescopic Tubing Assortment, 1/16, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4 O. D. X 014" Wall Thickness X 12", 7 Pieces, Made in The USA
- K&S 3408 Metal Cut-Offs, Assortment of Brass, Copper, Aluminum, & Stainless Steel, Made in The USA
- K&S 3405 Round Brass Rod Assortment, 11 Pieces, Made in The USA

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/148731480-k-and-s-precision-metals-round-copper-telescopic-tubing-assortment](https://www.desertcart.nl/products/148731480-k-and-s-precision-metals-round-copper-telescopic-tubing-assortment)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-04*