BISS: Super Strong Neodymium Disc Craft Magnets 1/4 X 1/16 Inch N42 (Set of 100) - Generic

Home Improvement: CMS Magnetics? N42 Neodymium Magnet Dia 3/4" X 1/8" w/ 1 Countersunk Hole for #8 Screw 10 Ct. - CMS Magnetics

BISS: Applied Magnets? 10-pc, Grade N42, Rare Earth Neodymium Disc Magnets, 1/2" x 1/8" with Countersunk Hole. - Applied Magnets

Office Product: Magnets -Economy 1/2" Round Disc with Adhesive Backing~ 250 Pcs! - Wholesale Craft Outlet

Kitchen: 100 CleverDelights Neodymium Magnets - 1/2 x 1/8 x 1/16 inch - 1/16" Hole - N35 Disc Magnets - Hobby and Craft Magnets - 13mm x 3mm x 1.5mm Hole

BISS: Neodymium Magnets 1/2 x 1/8" Discs w/Countersunk Recess Hole - Set of 20 Strong Magnets - Applied Magnets

BISS: Applied Magnets? 4-pc, Grade N42, Rare Earth Neodymium Disc Magnets 1" x 1/8" with Countersunk Hole. - Applied Magnets

Digital Device Accessory: RAVPower Dual Port 15.5W / 3.1A USB Car Charger for iPhone 6, 5s, 5c, 5, 4s, 4; iPad 5, Air, Mini; iPod Touch, Nano; Samsung Galaxy S5, S4, S3, S2, Galaxy Note 3, 2; Kindle; LG G2; Nexus 5, 7; Motorola Droid RAZR MAXX; Blackberry; Nook Color; Bluetooth Speakers and Headsets; HTC One X V S; External Batteries and More (Black) - RAVPower

BISS: N50 Small Round Ring Magnets 10mm x 3mm Hole 3mm Disc Rare Earth Neodymium 50pcs - VERY100

Art and Craft Supply: 50 Round Disk Magnets Crafts Home Office Part 3/4"

Home Improvement: CMS Magnetics? N42 Dia 1/2"X1/8" Neodymium Magnets w/ 1 Countersunk Hole for #6 Screw 10 Ct. - CMS Magnetics

BISS: Applied Magnets? 4-pc, Grade N42, Rare Earth Neodymium Disc Magnets 7/8" x 1/8" with Countersunk Hole. - Applied Magnets

Art and Craft Supply: Housweety 10PCs Silver Tone Disc Magnets 13mm(1/2") - Housweety

Home Improvement: Master Magnetics Round Super Magnet W/Key Ring - American Science & Surplus

Home Improvement: 4 ct. CMS Magnetics? N42 Dia 1"X1/4" Neodymium Magnets w/ 1 Countersunk Hole for #10 Screw - CMS Magnetics

BISS: Applied Magnets? 10-pc, Grade N42, Rare Earth Neodymium Disc Magnets 3/8" x 1/8" with Taper Hole. - Applied Magnets

Home: 20 pcs Super Strong Round Disc Magnets 10mm x 1mm by KurtzyTM - Kurtzy

Single Detail Page Misc: Pair of Super-Handy Magnetic Battery Connectors. With Swivel Tabs. Perfect for the Classroom! - American Scientific

Home Improvement: CMS Magnetics? N42 Neodymium Magnet 1" X 3/16" w/ one Countersunk Hole for #10 Screw 4 Counts - CMS Magnetics

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Magnet Disc Hole Popular Q&A

Q: How to Magnetize a Magnet Disc.
A: 1. Place a bath towel on a table to protect the surface. Place the hard drive that is to have its magnet disc magnetized on the bath towel with the circuit boar... Read More »

Q: Why are there no poles on disc magnets?
A: They do. Read More »

Q: What medium is magnetic disc?
A: The hard disks of computers are usually glass or aluminum coated with a very thin layer of fine grained magnetic material. Read More »

Q: What Are Rare Earth Neodymium Disc Magnets?
A: During the middle of the 1960s, physicists began to study rare earth magnets. Their first permanent magnet was made of a compound containing 1 samarium atom in ... Read More »

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A: The "magnetic motor" where you get continuous motion and work from just permanent magnets, is a hoax. That is not possible. If you want to build a generator, yo... Read More »