How to attach a countersunk magnetic ring ? Countersunk magnetic ring can be attached to non-ferromagnetic materials with the help of a countersunk screw, for example to hold a cupboard door closed.

attach a countersunk magnetic disc

attach a countersunk magnetic disc

To attach the countersunk magnetic disc to a non-ferromagnetic material you will need to do the following:
Things need to attach a countersunk magnetic disc: forstner drill bit, countersunk magnetic disc, cordless drill driver and a countersunk screw
Equipment needed:
22.23mm (0.88″) forstner drill bit
Cordless drill driver
12.7mm (0.5)” countersunk screw, such as a wood screw.
19.05mm (0.75″) countersunk magnetic disc
The size of the forstner drill bit, flat head screws, and the magnetic discs can all be increased/decreased in size to suit your needs
Forstner drill bit drilling a hole into a piece of wood for the magnet

Drill hole countersunk magnetic ring

Drill hole countersunk magnetic ring

Step 1 – Drill hole
Use the cordless drill driver with the forstner drill bit attached to drill a flat-bottomed hole into a piece of non-ferromagnetic material, for example a piece of wood.
The forstner drill bit will produce a hole of a consistent depth with smooth sides, which is ideal to insert the countersunk magnetic disc into.
A flat drill bit may also be used for this task, however it will not leave as neat of a hole as the forstner drill bit due to it’s sharp pointed end
Attaching a countersunk magnetic disc

Insert countersunk magnet

Insert countersunk magnet

Step 2 – Insert countersunk magnet
Clear out the hole of any wood chippings from the drilled hole and insert the countersunk magnetic disc with the countersunk hole facing upwards.
Countersunk magnetic disc attached with a flat headed screw to a piece of wood

Fasten with screw

Fasten with screw

Step 3 – Fasten with screw
Fasten the countersunk magnets with the flat headed screws until the screw is flush (level) with the top of the countersunk magnetic disc.

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