![Adjust-O Magnetic Square, On/Off Switch, Max Pull Force: 65 lbs (30kg), 45° & 90° Angle, 4-3/8 x 3-3/4 x 1″, Patented Design, MSA45, Strong Hand Tools - Amazon.com Adjust-O Magnetic Square, On/Off Switch, Max Pull Force: 65 lbs (30kg), 45° & 90° Angle, 4-3/8 x 3-3/4 x 1″, Patented Design, MSA45, Strong Hand Tools - Amazon.com](https://m.media-amazon.com/images/I/81Rvkax5eAL.jpg)
Adjust-O Magnetic Square, On/Off Switch, Max Pull Force: 65 lbs (30kg), 45° & 90° Angle, 4-3/8 x 3-3/4 x 1″, Patented Design, MSA45, Strong Hand Tools - Amazon.com
![MAG-Mate JP155R on/Off Magnetic Fixture Magnet, 155 lb. Capacity, 155 lb. Load Capacity, 2.18" Height, 1.25" Width, 1.57" Length, Silver/Red: Amazon.com: Industrial & Scientific MAG-Mate JP155R on/Off Magnetic Fixture Magnet, 155 lb. Capacity, 155 lb. Load Capacity, 2.18" Height, 1.25" Width, 1.57" Length, Silver/Red: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61ewP3S650L.jpg)
MAG-Mate JP155R on/Off Magnetic Fixture Magnet, 155 lb. Capacity, 155 lb. Load Capacity, 2.18" Height, 1.25" Width, 1.57" Length, Silver/Red: Amazon.com: Industrial & Scientific
![magnetics - Magnet that needs power to turn off? Inverse coil? - Electrical Engineering Stack Exchange magnetics - Magnet that needs power to turn off? Inverse coil? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/AKwdA.jpg)
magnetics - Magnet that needs power to turn off? Inverse coil? - Electrical Engineering Stack Exchange
![a) Operational concept of the conventional and new axisymmetric EPM... | Download Scientific Diagram a) Operational concept of the conventional and new axisymmetric EPM... | Download Scientific Diagram](https://www.researchgate.net/publication/326629556/figure/fig1/AS:652637695381506@1532612360903/a-Operational-concept-of-the-conventional-and-new-axisymmetric-EPM-architectures.png)
a) Operational concept of the conventional and new axisymmetric EPM... | Download Scientific Diagram
![MAG-Mate JF095R on/Off Magnetic Magnet with Flange, 95 lb. Lift, 95 lb. Load Capacity, 2.18" Height, 0.85" Width, 2.25" Length, Silver/Red: Amazon.com: Industrial & Scientific MAG-Mate JF095R on/Off Magnetic Magnet with Flange, 95 lb. Lift, 95 lb. Load Capacity, 2.18" Height, 0.85" Width, 2.25" Length, Silver/Red: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71N75sxH0FL.jpg)
MAG-Mate JF095R on/Off Magnetic Magnet with Flange, 95 lb. Lift, 95 lb. Load Capacity, 2.18" Height, 0.85" Width, 2.25" Length, Silver/Red: Amazon.com: Industrial & Scientific
Is there any simple, low-energy way to make a permanent magnet able to turn 'on and off' (similar to an electromagnet)? - Quora
![Neodymium Magnet Holder | Magnet Base Indicator | Lishuai Magnetics | Indicator Clamp - Magnetic Materials - Aliexpress Neodymium Magnet Holder | Magnet Base Indicator | Lishuai Magnetics | Indicator Clamp - Magnetic Materials - Aliexpress](https://ae01.alicdn.com/kf/HTB16ICad7fb_uJkSmRyq6zWxVXaK/LISHUAI-On-Off-Magnetic-Base-Holder-Switchable-Neodymium-Magnet-Indicator-Clamp-30kg-50kg-80kg-100kg.jpg)
Neodymium Magnet Holder | Magnet Base Indicator | Lishuai Magnetics | Indicator Clamp - Magnetic Materials - Aliexpress
![H-type SM. When off the magnetic flux closes between the two magnets.... | Download Scientific Diagram H-type SM. When off the magnetic flux closes between the two magnets.... | Download Scientific Diagram](https://www.researchgate.net/profile/Pedro-Neto/publication/282572429/figure/fig1/AS:363393354616833@1463651135597/H-type-SM-When-off-the-magnetic-flux-closes-between-the-two-magnets-Rotating-the-upper_Q320.jpg)
H-type SM. When off the magnetic flux closes between the two magnets.... | Download Scientific Diagram
![Strong Powerful On/off Switchable Neodymium Magnet Indicator Clamp Stand 30kg/50kg/80kg/100kg Pdok On/off Magnetic Base Holder - Instrument Parts & Accessories - AliExpress Strong Powerful On/off Switchable Neodymium Magnet Indicator Clamp Stand 30kg/50kg/80kg/100kg Pdok On/off Magnetic Base Holder - Instrument Parts & Accessories - AliExpress](https://ae01.alicdn.com/kf/HTB10VoNVCzqK1RjSZFjq6zlCFXaR/3T-8T-10T-On-Off-Switchable-Neodymium-Magnet-Indicator-Clamp-Stand-V-Type-Magnetic-Table-Base.jpg)
Strong Powerful On/off Switchable Neodymium Magnet Indicator Clamp Stand 30kg/50kg/80kg/100kg Pdok On/off Magnetic Base Holder - Instrument Parts & Accessories - AliExpress
![On/Off-Switchable Strong-Hand Welding Magnetic Clamps - Max 110lbs Heavy Duty Neodymium Welding Magnets Holder, Hexagon Multi-Angle 30°, 45°, 60°, 75°, 90°, 105°, 120°, 135°, 150° (2 PACK of Large) - Amazon.com On/Off-Switchable Strong-Hand Welding Magnetic Clamps - Max 110lbs Heavy Duty Neodymium Welding Magnets Holder, Hexagon Multi-Angle 30°, 45°, 60°, 75°, 90°, 105°, 120°, 135°, 150° (2 PACK of Large) - Amazon.com](https://m.media-amazon.com/images/I/71cogU6sTkL.jpg)