Magcraft NSN0802 1/2-Inch by 1/8-Inch Rare Earth Disc Magnets, 14-Count

by Magcraft

Product Description

From the Manufacturer

Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These disc magnets are 0.500-Inch (12.7-mm) diameter and 0.125-Inch (3.2-mm) thick. They are magnetized through the thickness. They are composed of grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 5-Pound. Maximum working temperature is 176-Degree Fahrenheit (80-Degree Celsius). Magnets may chip and crack if allowed to snap together.

Product Details

• Shipping Weight: 3.2 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000YF92PA
• Item model number: NSN0802
• Average Customer Review: 4.8 out of 5 stars  See all reviews (26 customer reviews)
• Amazon Best Sellers Rank: #3,025 in Home Improvement (See Top 100 in Home Improvement)
  • #16 in Arts, Crafts & Sewing > Sewing > Fasteners
  • #20 in Industrial & Scientific > Fasteners
  • #63 in Home Improvement > Hardware > Nails, Screws & Fasteners

Customer Reviews

Most Helpful Customer Reviews

15 of 15 people found the following review helpful:

5.0 out of 5 stars They really mean "Super-Strong", September 25, 2010

By 

Maeven - See all my reviews

Amazon Verified Purchase

This review is from: Magcraft NSN0802 1/2-Inch by 1/8-Inch Rare Earth Disc Magnets, 14-Count (Tools & Home Improvement)

I was leading a group arts and crafts project which required a magnet. I thought due to the size it would be just a normal little magnet, but it was almost like a cartoon trying to use them! First, it was REALLY hard separating them. Then our watches, keys, pens, notebook binders, jewelry and nearby metal dishes and cutlery (I'm not kidding!), and any and all other things metallic, would get stuck to them and were very hard to pull back off. Once you managed to get it off, it would almost invariably get immediately stuck to something else next to you. It was actually quite hilarious seeing a room full of 12 people each going through all these same motions. It literally looked like an SNL skit!

The warning on the label says to keep them away from pace-makers and "do not eat". I'm certain they would indeed short out a pace-maker. Considering how funny it was trying to work with them while getting stuck to everything in the vicinity, we decided to seriously heed this advice. One could imagine frying pans flying out of the kitchen and gluing themselves onto the stomach of one who for some reason did eat one. It was really funny, and they really meant it when they said "Super-Strong". We thought they were just bragging, but no, it was very challenging working with them because they really are! Definitely high-quality magnets. Perfect size for a toddler to swallow, so keep away from children.

10 of 10 people found the following review helpful:

5.0 out of 5 stars Incredibly Strong & Very Useful magnets, September 16, 2010

By 

Richard M. Perry "BayMaster with an E" (Olathe, KS, United States) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Magcraft NSN0802 1/2-Inch by 1/8-Inch Rare Earth Disc Magnets, 14-Count (Tools & Home Improvement)

I purchased these magnets primarily for detecting counterfeits of collectible coins and gold bullion.

Most genuine U.S. coins are not magnetic at all (one exception is the 1943 steel penny) and some fake gold bullion bars (and maybe fake coins too) have a steel core. All steel is mostly iron which will always stick to a magnet. Silver and Gold are not magnetic so most coins and all bullion will NOT be pulled by or stick to a magnet. A 1943 Lincoln penny passes or fails a magnet test in the opposite way.

I intend to use only 4 to 7 of these magnets together as a cylinder for that purpose and use the others for some other useful purpose. They are much stronger than other types of magnets and will hold any paper to a refrigerator easily (2nd practical use).

They are incredibly strong for their size and are a little difficult to separate. I recommend that you keep them in the original container when not in use, because they will snap to any steel, iron, or other magnets more quickly and from a farther distance than other magnets.

They could also be used for science experiments if you need small, round, clean magnets.

A 3rd practical use: keep a few in your pocket and stick steel nails, screws, or other fasteners to the outside of your pants.

A 4th practical use: you could attach them to any ordinary steel or iron tool with a long handle (e.g., garden rake, hoe, frog gig, etc.) and then use that tool to search the ground (e.g., your lawn) for lost nails or other small steel/iron objects.

6 of 6 people found the following review helpful:

5.0 out of 5 stars Perfect for a stainless steel refrigerator, March 21, 2010

By 

JayJay "Bovie Muff" (Chicago, IL) - See all my reviews

This review is from: Magcraft NSN0802 1/2-Inch by 1/8-Inch Rare Earth Disc Magnets, 14-Count (Tools & Home Improvement)

Previously I bought the 3/4" x 1/8" magnets and they are incredibly strong, in fact too strong for my fridge front. Most of my magnets won't stick to the front of my stainless steel fridge at all and it's always bothered me. Now though thanks to $10 getting me 24 of these little guys I simply wrip off the old magnetic backing and glue these on or just glue these straight to the magnets. Although these are small they are still incredibly strong and one can easily hold up a multipage brochure on the stainless front. Nice.

I used Gorilla Super Glue which cured in 30 seconds so they worked great. One thing of note though was the fumes coming off of any excess on the sides will adhere to the fridge face so if you use this glue make sure to let your magnets sit by themselves for at least 24 hours before placing them on your fridge.