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MW 15x2 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010028

GTIN/EAN: 5906301810278

5.00

Diameter Ø

15 mm [±0,1 mm]

Height

2 mm [±0,1 mm]

Weight

2.65 g

Magnetization Direction

↑ axial

Load capacity

1.51 kg / 14.84 N

Magnetic Induction

159.70 mT / 1597 Gs

Coating

[NiCuNi] Nickel

technical details »

1.218 ZŁ with VAT / pcs + price for transport

0.990 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 888 99 98 98 alternatively drop us a message using inquiry form the contact page.
Lifting power and shape of a neodymium magnet can be tested with our power calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical specification of the product - MW 15x2 / N38 - cylindrical magnet

Specification / characteristics - MW 15x2 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010028
GTIN/EAN 5906301810278
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 15 mm [±0,1 mm]
Height 2 mm [±0,1 mm]
Weight 2.65 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1.51 kg / 14.84 N
Magnetic Induction ~ ? 159.70 mT / 1597 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 15x2 / N38 - cylindrical magnet
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 312 - 380 °C
Curie Temperature TF 593 - 716 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical simulation of the assembly - data

These information are the result of a physical analysis. Values rely on models for the material Nd2Fe14B. Actual parameters might slightly differ. Please consider these data as a preliminary roadmap for designers.

Table 1: Static pull force (force vs distance) - interaction chart
MW 15x2 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1597 Gs
159.7 mT
 1.51 kg / 3.33 lbs
1510.0 g / 14.8 N
 weak grip
1 mm 1483 Gs
148.3 mT
 1.30 kg / 2.87 lbs
1303.0 g / 12.8 N
 weak grip
2 mm 1320 Gs
132.0 mT
 1.03 kg / 2.28 lbs
1032.2 g / 10.1 N
 weak grip
3 mm 1137 Gs
113.7 mT
 0.77 kg / 1.69 lbs
765.0 g / 7.5 N
 weak grip
5 mm 791 Gs
79.1 mT
 0.37 kg / 0.82 lbs
370.8 g / 3.6 N
 weak grip
10 mm 298 Gs
29.8 mT
 0.05 kg / 0.12 lbs
52.5 g / 0.5 N
 weak grip
15 mm 127 Gs
12.7 mT
 0.01 kg / 0.02 lbs
9.6 g / 0.1 N
 weak grip
20 mm 63 Gs
6.3 mT
 0.00 kg / 0.01 lbs
2.4 g / 0.0 N
 weak grip
30 mm 22 Gs
2.2 mT
 0.00 kg / 0.00 lbs
0.3 g / 0.0 N
 weak grip
50 mm 5 Gs
0.5 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 weak grip
Magnetic force weakens drastically with every mm of spacing. Remember that even a microscopic distance (e.g., dirt, paint, rust) significantly weakens the grip. Magnetic products operate strongest during direct contact; distance weakens the power. See how flashily the pull force fall, when the magnet does not touch tightly to the steel surface. When designing the mounting, avoid redundant distances.

Table 2: Sliding hold (wall)
MW 15x2 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 0.30 kg / 0.67 lbs
302.0 g / 3.0 N
1 mm Stal (~0.2) 0.26 kg / 0.57 lbs
260.0 g / 2.6 N
2 mm Stal (~0.2) 0.21 kg / 0.45 lbs
206.0 g / 2.0 N
3 mm Stal (~0.2) 0.15 kg / 0.34 lbs
154.0 g / 1.5 N
5 mm Stal (~0.2) 0.07 kg / 0.16 lbs
74.0 g / 0.7 N
10 mm Stal (~0.2) 0.01 kg / 0.02 lbs
10.0 g / 0.1 N
15 mm Stal (~0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
20 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
30 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
50 mm Stal (~0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The following data defines the theoretical shear load sufficient to start the shifting of the magnet downwards against a vertical steel plate (considering standard friction). This parameter depends on the air gap between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MW 15x2 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.45 kg / 1.00 lbs
453.0 g / 4.4 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.30 kg / 0.67 lbs
302.0 g / 3.0 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.15 kg / 0.33 lbs
151.0 g / 1.5 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.76 kg / 1.66 lbs
755.0 g / 7.4 N
When mounting a magnet on a vertical plane (e.g., a board), it you can count on only about 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient mean that holders slip easier than they detach. Want to create a wall mount? Remember that the shear force is much weaker than the maximum static pull force. On a slippery surface, the element will slide down under a significantly smaller load. Using a rubber pad can effectively raise the stability.

Table 4: Steel thickness (saturation) - sheet metal selection
MW 15x2 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.15 kg / 0.33 lbs
151.0 g / 1.5 N
1 mm
25%
 0.38 kg / 0.83 lbs
377.5 g / 3.7 N
2 mm
50%
 0.76 kg / 1.66 lbs
755.0 g / 7.4 N
3 mm
75%
 1.13 kg / 2.50 lbs
1132.5 g / 11.1 N
5 mm
100%
 1.51 kg / 3.33 lbs
1510.0 g / 14.8 N
10 mm
100%
 1.51 kg / 3.33 lbs
1510.0 g / 14.8 N
11 mm
100%
 1.51 kg / 3.33 lbs
1510.0 g / 14.8 N
12 mm
100%
 1.51 kg / 3.33 lbs
1510.0 g / 14.8 N
A thin metal plate is not enough to conduct the full magnetic flux, which wastes potential of the magnet. Should you mount a strong magnet to a thin surface, the field will pass right through and the pull force will drop sharply. To squeeze 100% of this magnet's potential, you require a sufficiently solid piece of metal. The material oversaturation causes that on sheet metal structures (e.g., appliance housings), the holder holds weaker. We recommend selecting the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - power drop
MW 15x2 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 1.51 kg / 3.33 lbs
1510.0 g / 14.8 N
 OK
40 °C -2.2% 1.48 kg / 3.26 lbs
1476.8 g / 14.5 N
 OK
60 °C -4.4% 1.44 kg / 3.18 lbs
1443.6 g / 14.2 N
80 °C -6.6% 1.41 kg / 3.11 lbs
1410.3 g / 13.8 N
100 °C -28.8% 1.08 kg / 2.37 lbs
1075.1 g / 10.5 N
Standard neodymium magnets lose parameters above the temperature limit. Avoid high temperatures – high temperature can irreversibly demagnetize this magnet. As the temperature rises, the neodymium's force temporarily drops. Do not use this magnet in hot environments higher than its operating temperature limit. Ignoring the limit will cause permanent loss of magnetism.
*Technical advisory: Heat tolerance depends not only on the material grade, but also on the magnet's shape. Thin magnets (pancake types) risk losing magnetic properties at lower temperatures compared to rod magnets. The danger warning in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (repulsion) - field collision
MW 15x2 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Shear Strength (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 2.78 kg / 6.12 lbs
2 915 Gs
0.42 kg / 0.92 lbs
417 g / 4.1 N
 N/A
1 mm 2.61 kg / 5.76 lbs
3 096 Gs
0.39 kg / 0.86 lbs
392 g / 3.8 N
 2.35 kg / 5.18 lbs
~0 Gs
2 mm 2.40 kg / 5.28 lbs
2 966 Gs
0.36 kg / 0.79 lbs
360 g / 3.5 N
 2.16 kg / 4.76 lbs
~0 Gs
3 mm 2.15 kg / 4.75 lbs
2 812 Gs
0.32 kg / 0.71 lbs
323 g / 3.2 N
 1.94 kg / 4.27 lbs
~0 Gs
5 mm 1.65 kg / 3.63 lbs
2 459 Gs
0.25 kg / 0.54 lbs
247 g / 2.4 N
 1.48 kg / 3.27 lbs
~0 Gs
10 mm 0.68 kg / 1.50 lbs
1 582 Gs
0.10 kg / 0.23 lbs
102 g / 1.0 N
 0.61 kg / 1.35 lbs
~0 Gs
20 mm 0.10 kg / 0.21 lbs
595 Gs
0.01 kg / 0.03 lbs
14 g / 0.1 N
 0.09 kg / 0.19 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
71 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
43 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
28 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
19 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
90 mm 0.00 kg / 0.00 lbs
14 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
100 mm 0.00 kg / 0.00 lbs
10 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products attract each other from a wider radius than a magnet and steel combination. Such a system of magnet-to-magnet creates a more powerful interaction and a wider radius of performance. Designing a solid fastener? Apply two magnets instead of a neodymium and a steel. Be careful that when bringing together two magnets, the impact force is massive. The repulsion force is slightly lower than the attraction, but still large.
*Field value in repulsion mode is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Attention: Results refer to friction force of a pair of identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Safety (HSE) (electronics) - precautionary measures
MW 15x2 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 5.5 cm
Hearing aid 10 Gs (1.0 mT) 4.0 cm
Timepiece 20 Gs (2.0 mT) 3.5 cm
Mobile device 40 Gs (4.0 mT) 2.5 cm
Remote 50 Gs (5.0 mT) 2.5 cm
Payment card 400 Gs (40.0 mT) 1.0 cm
HDD hard drive 600 Gs (60.0 mT) 1.0 cm
Powerful magnet radiation poses a large risk to electronic devices and medical implants. These magnets produce a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field penetrates the body and glass. Special caution must be exercised by people with hearing aids and drug dispensers. Influence will be felt by: mechanical watches, remotes, membranes, and screens. Avoid contact with magnetic cards, hard drives, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - warning
MW 15x2 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 24.59 km/h
(6.83 m/s)
 0.06 J
30 mm 41.70 km/h
(11.58 m/s)
 0.18 J
50 mm 53.83 km/h
(14.95 m/s)
 0.30 J
100 mm 76.13 km/h
(21.15 m/s)
 0.59 J
Neodymium magnets are very brittle – a violent impact against metal can result in shattering. Control the attraction moment – a neodymium left loose turns into a projectile. Kinetic force can cause material chips or painful pinches to skin. Hold the magnet firmly during mounting so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when playing with large magnets.

Table 9: Surface protection spec
MW 15x2 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (Pc)
MW 15x2 / N38

Parameter Value SI Unit / Description
Magnetic Flux 3 541 Mx 35.4 µWb
Pc Coefficient 0.20 Low (Flat)
Total magnetic flux emitted by the magnet pole. Key data for generator designers as well as sensors. The Pc coefficient determines the magnet's operating point.

Table 11: Hydrostatics and buoyancy
MW 15x2 / N38

Environment Effective steel pull Effect
Air (land) 1.51 kg Standard
Water (riverbed) 1.73 kg
(+0.22 kg buoyancy gain)
+14.5%
Rust risk: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!
The magnetic field penetrates through water without any losses. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.
1. Vertical hold

*Note: On a vertical surface, the magnet holds only approx. 20-30% of its perpendicular strength.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) significantly weakens the holding force.

3. Heat tolerance

*For standard magnets, the safety limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.20

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR
Material specification
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
Environmental data
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010028-2026
Quick Unit Converter
Force (pull)
Field Strength
Put a figure in a single field to see the conversion in the other fields immediately.

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This product is an extremely powerful rod magnet, made from modern NdFeB material, which, with dimensions of Ø15x2 mm, guarantees optimal power. The MW 15x2 / N38 component features an accuracy of ±0.1mm and industrial build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with significant force (approx. 1.51 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Moreover, its Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.
This model is ideal for building electric motors, advanced sensors, and efficient magnetic separators, where maximum induction on a small surface counts. Thanks to the pull force of 14.84 N with a weight of only 2.65 g, this cylindrical magnet is indispensable in electronics and wherever every gram matters.
Since our magnets have a very precise dimensions, the recommended way is to glue them into holes with a slightly larger diameter (e.g., 15.1 mm) using epoxy glues. To ensure stability in automation, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most popular standard for industrial neodymium magnets, offering a great economic balance and high resistance to demagnetization. If you need the strongest magnets in the same volume (Ø15x2), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
The presented product is a neodymium magnet with precisely defined parameters: diameter 15 mm and height 2 mm. The value of 14.84 N means that the magnet is capable of holding a weight many times exceeding its own mass of 2.65 g. The product has a [NiCuNi] coating, which secures it against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 15 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized diametrically if your project requires it.

Advantages and disadvantages of rare earth magnets.

Benefits

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • They do not lose power, even over approximately ten years – the drop in power is only ~1% (theoretically),
  • They are noted for resistance to demagnetization induced by external field influence,
  • In other words, due to the shiny layer of nickel, the element is aesthetically pleasing,
  • They feature high magnetic induction at the operating surface, which affects their effectiveness,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Due to the potential of free molding and adaptation to unique needs, NdFeB magnets can be manufactured in a variety of geometric configurations, which amplifies use scope,
  • Wide application in advanced technology sectors – they are used in data components, electric drive systems, medical equipment, as well as modern systems.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Disadvantages

Problematic aspects of neodymium magnets and ways of using them
  • They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • We suggest casing - magnetic mount, due to difficulties in producing nuts inside the magnet and complicated forms.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Furthermore, small elements of these products are able to complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum lifting force for a neodymium magnet – what contributes to it?

The specified lifting capacity refers to the limit force, obtained under laboratory conditions, specifically:
  • using a base made of mild steel, functioning as a circuit closing element
  • whose thickness reaches at least 10 mm
  • characterized by even structure
  • without any clearance between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • at temperature room level

Lifting capacity in real conditions – factors

Real force impacted by working environment parameters, mainly (from priority):
  • Gap (betwixt the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Plate material – mild steel gives the best results. Higher carbon content reduce magnetic permeability and lifting capacity.
  • Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
  • Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.

Safe handling of NdFeB magnets
Adults only

Product intended for adults. Small elements pose a choking risk, leading to serious injuries. Store out of reach of kids and pets.

Do not overheat magnets

Watch the temperature. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Shattering risk

Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Magnetic media

Equipment safety: Neodymium magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, mechanical watches).

Fire risk

Dust produced during grinding of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Serious injuries

Big blocks can crush fingers in a fraction of a second. Never put your hand between two strong magnets.

Metal Allergy

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If skin irritation happens, cease working with magnets and use protective gear.

GPS Danger

Navigation devices and mobile phones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Warning for heart patients

For implant holders: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or request help to work with the magnets.

Handling guide

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Warning! Details about risks in the article: Safety of working with magnets.