These diametrically magnetized discs are very powerful. They are magnetized perpendicular to the axis of the cylinder, so they will attract "side-to-side" with great force. They "feel" stronger and are a bit more difficult to handle than the axially magnetized cylinders of the same size.
This size is also available axially magnetized
as part number DC6
and in Grade N52 with a Black Nickel plating as part number DC6B-N52