Wire Brush Wheel Cup Brush Set,12 Pack Coarse Crimped 1/4 Inch Shank Wire Wheel for Drill Attachment

The add says metal, brass. The wires are brass colored steel.

...and I quote: Works fine. There you have it!

These are steel brushes and are very firm. The photo makes them appear to be brass, which they are not. They do work well, but do not purchase if you are looking for a softer brass brush for fine finishing.

Great value and decent quality.

Works ok

The regular brushes are perfectly fine, the long brushes are just too soft. They really don’t do anything useful.