Neodymium Ring Magnet 10 x 5 x 5 mm N48 Diametrically Magnetised
 
An NdFeB (neodymium) ring magnet provides high magnetic attraction for its size and fits readily into various holders and components. Alongside high magnetic attraction, the surface coating helps improve durability. N48 indicates the magnetic grade, commonly ranging from N35 to N52; higher numbers generally indicate greater magnetic attraction. diametrically magnetised ring: the poles are on the inner and outer surfaces, so the field direction differs from a conventional ring magnet magnetised through its thickness.
 
The Ø10/Ø5×5 mm size suits prototypes and DIY projects, especially applications with shaft or screw mounting. (Ø10/Ø5×5 mm) A good choice for applications requiring a diametric field, including detection, alignment, coupling and rotating systems. Holding force depends strongly on the thickness and condition of the metal surface. It is greater on thick steel and weaker on thin sheet metal.
 
Warning: keep away from children. Swallowing magnets can be life-threatening. Seek immediate medical attention if swallowing is suspected. Magnetic attraction is strong. Bring magnets together and separate them carefully to avoid pinching injuries and chipping. Keep them away from medical devices, cards and sensitive electronics.